T1684.001: Impersonation
Adversaries may impersonate a trusted person or organization in order to persuade and trick a target into performing some action on their behalf. For example, adversaries may communicate with victims (via Phishing for Information, Phishing, or Internal Spearphishing) while impersonating a known sender such as an executive, colleague, or third-party vendor. Established trust can then be leveraged to accomplish an adversary’s ultimate goals, possibly against multiple victims.
In many cases of business email compromise or email fraud campaigns, adversaries use impersonation to defraud victims -- deceiving them into sending money or divulging information that ultimately enables Financial Theft.
Adversaries will often also use social engineering techniques such as manipulative and persuasive language in email subject lines and body text such as `payment`, `request`, or `urgent` to push the victim to act quickly before malicious activity is detected. These campaigns are often specifically targeted against people who, due to job roles and/or accesses, can carry out the adversary’s goal.
Impersonation is typically preceded by reconnaissance techniques such as Gather Victim Identity Information and Gather Victim Org Information as well as acquiring infrastructure such as email domains (i.e. Domains) to substantiate their false identity.[1]
There is the potential for multiple victims in campaigns involving impersonation. For example, an adversary may Compromise Accounts targeting one organization which can then be used to support impersonation against other entities.[2]
Analyst context for executives and security teams
Impersonation matters because it turns normal business trust into the attack path: a victim may believe they are acting for an executive, colleague, vendor, or other trusted organization. For leaders, the material risk is not only malware; it is unauthorized approvals, information disclosure, account compromise support, and fraud such as business email compromise or vendor email compromise.
Executive priority
Prioritize this as a business process and identity-risk issue, not just an email-security issue. Executives should ask whether payment changes, sensitive data releases, help desk actions, and SaaS access requests require independent verification when urgency, vendor identity, or executive authority is invoked. The ATT&CK relationships to User Training and Threat Intelligence Program support investment in staff readiness, reporting paths, and intelligence-led awareness for likely impersonation themes.
Technical view
This is an enterprise ATT&CK sub-technique under Social Engineering with the stealth tactic and platforms including Linux, macOS, Windows, Office Suite, and SaaS. MITRE provides no official detection text, but a related detection strategy, DET0286, is mapped to this object. SOC and IR teams should validate visibility across email, collaboration, identity, and SaaS workflows where trusted-person or trusted-organization claims can trigger action. Investigations should consider precursor context called out by ATT&CK, including victim identity or organization reconnaissance and acquired domains used to support a false identity.
Likely telemetry
- Email security and mail gateway logs, including sender, reply-to, display name, subject, body indicators, and authentication results where available
- Office Suite and SaaS audit logs for unusual access requests, sharing, approvals, or administrative/help desk interactions
- Identity and account activity logs for compromised accounts used to impersonate internal or vendor identities
- User-reported phishing, fraud, or suspicious request submissions
- Domain and infrastructure intelligence related to lookalike or newly observed email domains referenced in communications
Detection direction
- Validate DET0286 or local equivalent coverage against impersonation scenarios involving executives, colleagues, vendors, and trusted organizations.
- Tune for social-engineering cues described by ATT&CK, such as urgency and payment/request language, while accounting for legitimate business communications that may use similar terms.
- Correlate suspicious messages with identity, SaaS, and business-process events rather than relying on message content alone.
- Look for multi-victim patterns, including compromised accounts at one organization being used to impersonate trusted parties to others.
- Review blind spots where requests move outside monitored email, or where SaaS/workflow approvals do not generate SOC-visible telemetry.
Mitigation priorities
- Use role-based User Training focused on recognizing and reporting impersonation, phishing, internal spearphishing, and vendor-style fraud scenarios.
- Strengthen business verification processes for payments, sensitive data release, access approvals, and urgent executive or vendor requests.
- Maintain a Threat Intelligence Program that tracks impersonation themes, suspicious domains, and campaign context relevant to the organization’s sector and partners.
- Ensure incident response playbooks include containment and notification steps for compromised accounts that may be used to impersonate the organization to downstream victims.
- Measure compliance evidence through training completion, reporting metrics, verification-control testing, and investigation records for suspected impersonation events.
Analyst notes and limits
ATT&CK links this behavior to business email compromise, email fraud, phishing-related communications, internal spearphishing, reconnaissance, domain acquisition, and possible financial theft. The relationship set shows use by multiple campaigns and groups, indicating broad relevance, but those relationships should be used for threat-informed prioritization rather than assumptions about any specific environment.
MITRE does not provide official detection text for this object in the supplied fields, and the related detection strategy details are not included beyond its name and mapping. Local telemetry, workflow design, email/SaaS controls, and user reporting quality will determine practical coverage.
Impersonation
Adversaries may impersonate a trusted person or organization in order to persuade and trick a target into performing some action on their behalf. For example, adversaries may communicate with victims (via Phishing for Information, Phishing, or Internal Spearphishing) while impersonating a known sender such as an executive, colleague, or third-party vendor. Established trust can then be leveraged to accomplish an adversary’s ultimate goals, possibly against multiple victims.
In many cases of business email compromise or email fraud campaigns, adversaries use impersonation to defraud victims -- deceiving them into sending money or divulging information that ultimately enables Financial Theft.
Adversaries will often also use social engineering techniques such as manipulative and persuasive language in email subject lines and body text such as `payment`, `request`, or `urgent` to push the victim to act quickly before malicious activity is detected. These campaigns are often specifically targeted against people who, due to job roles and/or accesses, can carry out the adversary’s goal.
Impersonation is typically preceded by reconnaissance techniques such as Gather Victim Identity Information and Gather Victim Org Information as well as acquiring infrastructure such as email domains (i.e. Domains) to substantiate their false identity.[1]
There is the potential for multiple victims in campaigns involving impersonation. For example, an adversary may Compromise Accounts targeting one organization which can then be used to support impersonation against other entities.[2]
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
Related techniques
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Enterprise | T1656 | Impersonation | Impersonation revoked by this object. |
| Enterprise | T1684 | Social Engineering | This object subtechnique of Social Engineering. |
Groups, software, and campaigns
G1033: Star Blizzard
Star Blizzard is a cyber espionage and influence group originating in Russia that has been active since at least 2019. Star Blizzard campaigns align closely with Russian state interests and have included persistent phishing and credential theft against academic, defense, government, NGO, and think tank organizations in NATO countries, particularly the US and the UK.[1][2][3][4]
G0094: Kimsuky
Kimsuky is a Democratic People's Republic of Korea (DPRK)-based cyber espionage group that has been active since at least 2012. The group initially targeted South Korean government agencies, think tanks, and subject-matter experts in various fields. Its operations expanded to include the United Nations and organizations in the government, education, business services, and manufacturing sectors across the United States, Japan, Russia, and Europe. Kimsuky has focused collection on foreign policy and national security issues tied to the Korean Peninsula, nuclear policy, and sanctions. Kimsuky operations have overlapped with those of other North Korean state-sponsored cyber espionage actors as a result of ad hoc collaborations or other limited resource sharing.[1][2][3][4][5][6]
Kimsuky was assessed to be responsible for the 2014 Korea Hydro & Nuclear Power Co. compromise; other notable campaigns include Operation STOLEN PENCIL (2018), Operation Kabar Cobra (2019), and Operation Smoke Screen (2019).[7][8][9] In 2023, Kimsuky was observed using commercial large language models (LLMs) to assist with vulnerability research, scripting, social engineering and reconnaissance.[10]
DPRK threat actor cluster boundaries overlap in open source reporting, with some security researchers consolidating all attributed North Korean state-sponsored cyber activity under Lazarus Group, rather than tracking operationally distinct subgroups.
G0099: APT-C-36
APT-C-36 is a suspected South American threat group that has engaged in espionage and financially motivated operations since at least 2018. APT-C-36 has targeted government institutions and entities in the financial, energy, and professional manufacturing sectors across Colombia and other Latin American countries.[1][2][3][4]
G1055: VOID MANTICORE
VOID MANTICORE is a threat group assessed to operate on behalf of Iran’s Ministry of Intelligence and Security (MOIS).[1] Active since at least mid-2022, VOID MANTICORE has targeted government entities, critical infrastructure, and private sector organizations across Albania, Israel, and the United States.[1][2] VOID MANTICORE conducts destructive cyber operations, combining wiper attacks with hack-and-leak campaigns. The group has operated under multiple public-facing personas, including HomeLand Justice in operations against Albania, Karma and Karma Below in campaigns targeting Israeli organizations, and Handala Hack, its current primary persona, which has claimed activity against Israeli and U.S. entities, including a March 2026 attack against Stryker Corporation.[1][3] VOID MANTICORE has been observed collaborating with Scarred Manticore, which has been linked to initial access operations preceding VOID MANTICORE’s activity.[4]
G1054: MirrorFace
MirrorFace is a People's Republic of China (PRC)-aligned cyberespionage actor believed to be a subgroup under the menuPass umbrella based on targeting, tools, and infrastructure overlaps. MirrorFace has been active since at least 2019, at first exclusively targeting Japanese organizations across the media, defense, diplomatic, financial, manufacturing, and academic sectors. Subsequent MirrorFace operations included targets in Central Europe and featured use of LODEINFO, HiddenFace, and UPPERCUT malware.[1][2][3][4][5][6]
G1015: Scattered Spider
Scattered Spider is a native English-speaking cybercriminal group active since at least 2022. [1] [2] The group initially targeted customer relationship management (CRM) providers, business process outsourcing (BPO) firms, and telecommunications and technology companies before expanding in 2023 to gaming, hospitality, retail, managed service provider (MSP), manufacturing, and financial sectors. [2] Scattered Spider relies heavily on social engineering, including impersonating IT and help-desk staff, to gain initial access, bypass multi-factor authentication (MFA), and compromise enterprise networks. The group has adapted its tooling to evade endpoint detection and response (EDR) defenses and used ransomware for financial gain. [3] [4] [5] Scattered Spider had expanded into hybrid cloud and identity environments, using help-desk impersonation and MFA bypass to obtain administrator access in Okta, AWS, and Office 365. [6]
G1031: Saint Bear
Saint Bear is a Russian-nexus threat actor active since early 2021, primarily targeting entities in Ukraine and Georgia. The group is notable for a specific remote access tool, Saint Bot, and information stealer, OutSteel in campaigns. Saint Bear typically relies on phishing or web staging of malicious documents and related file types for initial access, spoofing government or related entities.[1][2] Saint Bear has previously been confused with Ember Bear operations, but analysis of behaviors, tools, and targeting indicates these are distinct clusters.
G1044: APT42
APT42 is an Iranian-sponsored threat group that conducts cyber espionage and surveillance.[1] The group primarily focuses on targets in the Middle East region, but has targeted a variety of industries and countries since at least 2015.[1] APT42 starts cyber operations through spearphishing emails and/or the PINEFLOWER Android malware, then monitors and collects information from the compromised systems and devices.[1] Finally, APT42 exfiltrates data using native features and open-source tools.[2]
APT42 activities have been linked to Magic Hound by other commercial vendors. While there are behavior and software overlaps between Magic Hound and APT42, they appear to be distinct entities and are tracked as separate entities by their originating vendor.
G1046: Storm-1811
Storm-1811 is a financially-motivated entity linked to Black Basta ransomware deployment. Storm-1811 is notable for unique phishing and social engineering mechanisms for initial access, such as overloading victim email inboxes with non-malicious spam to prompt a fake "help desk" interaction leading to the deployment of adversary tools and capabilities.[1][2][3][4]
G0069: MuddyWater
MuddyWater is a cyber espionage group assessed to be a subordinate element within Iran's Ministry of Intelligence and Security (MOIS).[1] Since at least 2017, MuddyWater has targeted a range of government and private organizations across sectors, including telecommunications, local government, finance, defense, and oil and natural gas organizations, in the Middle East (specifically the UAE and Saudi Arabia), Asia, Africa, Europe, and North America. MuddyWater has reused domains dating back to October 2025, and has a preference for NameCheap and Hosterdaddy Private Limited (AS136557). In late 2025 and early 2026, MuddyWater used commercial satellite internet (i.e., Starlink) for command and control (C2) communication. [2][3][4][5][6][7][8][9][10][11][12][13]
G1052: Contagious Interview
Contagious Interview is a North Korea–aligned threat group active since 2023. The group conducts both cyberespionage and financially motivated operations, including the theft of cryptocurrency and user credentials. Contagious Interview targets Windows, Linux, and macOS systems, with a particular focus on individuals engaged in software development and cryptocurrency-related activities. [1][2][3][4][5][6][7][8]
G0090: WIRTE
WIRTE is a cyberespionage actor, believed to be a subgroup of the Hamas-affiliated Gaza Cybergang, that has been active since at least August 2018. WIRTE has targeted diplomatic, financial, military, legal, and technology organizations across the Middle East, North Africa, and in Europe to gather intelligence. WIRTE has remained persistently active despite the ongoing Israel-Hamas conflict and has expanded their operations to include wiper malware attacks against Israeli targets.[1][2][3][4]
S9037: RustyWater
RustyWater is a Rust-based implant used by MuddyWater. Historically, MuddyWater has used PowerShell-based tools and RustyWater reflects a shift in tooling, demonstrating better techniques for defense evasion and reverse engineering.[1]
S1131: NPPSPY
NPPSPY is an implementation of a theoretical mechanism first presented in 2004 for capturing credentials submitted to a Windows system via a rogue Network Provider API item. NPPSPY captures credentials following submission and writes them to a file on the victim system for follow-on exfiltration.[1][2]
C0027: C0027
C0027 was a financially-motivated campaign linked to Scattered Spider that targeted telecommunications and business process outsourcing (BPO) companies from at least June through December of 2022. During C0027 Scattered Spider used various forms of social engineering, performed SIM swapping, and attempted to leverage access from victim environments to mobile carrier networks.[1]
C0059: Salesforce Data Exfiltration
The Salesforce Data Exfiltration campaign began in October 2024 with financially-motivated threat actor UNC6040 using Spearphishing Voice (vishing) to compromise corporate Salesforce instances for large-scale data theft and extortion. Following the initial data theft, victim organizations received extortion demands from a separate threat actor, UNC6240, who claimed to be the “ShinyHunters” group. The observed infrastructure and TTPs used during the Salesforce Data Exfiltration campaign overlap with those used by threat groups with suspected ties to the broader collective known as "The Com.” These overlaps could plausibly be the result of associated actors operating within the same communities and are not necessarily an indication of a direct operational relationship.[1][2]
C0022: Operation Dream Job
Operation Dream Job was a cyber espionage operation likely conducted by Lazarus Group that targeted the defense, aerospace, government, and other sectors in the United States, Israel, Australia, Russia, and India. In at least one case, the cyber actors tried to monetize their network access to conduct a business email compromise (BEC) operation. In 2020, security researchers noted overlapping TTPs, to include fake job lures and code similarities, between Operation Dream Job, Operation North Star, and Operation Interception; by 2022 security researchers described Operation Dream Job as an umbrella term covering both Operation Interception and Operation North Star.[1][2][3][4]
All related ATT&CK context
Mitigation direction
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | b29de817615b… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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[1]
Crowdstrike BEC
Bart Lenaerts-Bergmans. (2023, August 8). What is Business Email Compromise?. Retrieved April 15, 2026.
Open source URL -
[2]
VEC
CloudFlare. (n.d.). What is vendor email compromise (VEC)?. Retrieved September 12, 2023.
Open source URL -
[3]
mitre-attack T1684.001Open source URL
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