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MITRE ATT&CK® Technique

T1591: Gather Victim Org Information

Adversaries may gather information about the victim's organization that can be used during targeting. Information about an organization may include a variety of details, including the names of divisions/departments, specifics of business operations, as well as the roles and responsibilities of key employees.

Adversaries may gather this information in various ways, such as direct elicitation via Phishing for Information. Information about an organization may also be exposed to adversaries via online or other accessible data sets (ex: Social Media or Search Victim-Owned Websites).[1][2] Gathering this information may reveal opportunities for other forms of reconnaissance (ex: Phishing for Information or Search Open Websites/Domains), establishing operational resources (ex: Establish Accounts or Compromise Accounts), and/or initial access (ex: Phishing or Trusted Relationship).

EnterpriseT1591TechniqueObject v1.1 Modified
Glexia's Take

Analyst context for executives and security teams

Analyst confidence High

T1591 matters because adversaries can turn ordinary organizational details—departments, operations, key roles, business relationships, locations, and operating tempo—into more credible targeting. For leaders, this is a pre-compromise risk: the issue is not malware on a system yet, but whether public or easily elicited information makes phishing, trusted-relationship abuse, account targeting, or later reconnaissance easier.

Executive priority

Treat this as an exposure-management and readiness question. Ask what information about the organization, executives, privileged roles, partners, locations, operating schedules, and business processes is publicly available or easily obtained. Prioritize controls that reduce unnecessary disclosure, prepare staff for information-seeking phishing, and give SOC/IR teams a way to recognize reconnaissance before it becomes initial access. This is especially relevant where business relationships, managed service providers, critical infrastructure, or cyber-physical locations could increase operational risk.

Technical view

This is a reconnaissance technique on the PRE platform with no official ATT&CK detection text provided. Defensive validation should therefore focus on whether the organization can observe and triage likely precursors: phishing-for-information reports, unusual external interest in public websites or employee profiles, exposure in public filings or data sets, and references to sensitive roles, locations, business tempo, or third-party relationships. Relationship context shows sub-techniques for physical locations, business relationships, business tempo, and roles, so detection engineering and IR playbooks should map those categories to local evidence sources and escalation criteria. DET0890 is related as a detection strategy, but its details are not supplied here.

Likely telemetry

  • Public website and domain access analytics for unusual enumeration of organizational pages, leadership pages, location pages, partner pages, or operational information
  • Security awareness and mailbox reporting data for phishing-for-information attempts
  • External attack surface and public exposure review outputs covering victim-owned websites, social media, and accessible data sets
  • Records of public filings or disclosures that reveal business structure, operations, locations, or key personnel, such as SEC EDGAR where applicable
  • Third-party, supplier, and managed service provider relationship inventories used to understand what relationship data may be exposed

Detection direction

  • Because ATT&CK provides no official detection text for this technique, validate process coverage rather than assuming tool coverage.
  • Tune monitoring around patterns of external interest in sensitive public information, but account for benign activity such as customers, job applicants, investors, journalists, auditors, and partners.
  • Correlate reported information-seeking phishing with the specific organizational details being requested, such as roles, departments, locations, schedules, or vendors.
  • Use the sub-techniques as review categories: physical locations, business relationships, business tempo, and roles.
  • Where campaign or group intelligence is relevant to the organization, use the listed ATT&CK relationships as context only; do not infer local targeting without local evidence.

Mitigation priorities

  • Start with pre-compromise exposure reduction, aligned to M1056: limit unnecessary public disclosure of sensitive organizational details.
  • Review victim-owned websites, social media, public filings, and other accessible data sets for information that could enable targeting.
  • Train employees and high-value roles to recognize direct elicitation and phishing-for-information attempts.
  • Maintain accurate inventories of key roles, third-party relationships, locations, and operational dependencies so security teams know which disclosures are material.
  • Prepare IR and SOC playbooks for escalation when reconnaissance appears tied to phishing, trusted relationships, account establishment or compromise, or other initial access paths referenced by ATT&CK.
Analyst notes and limits

ATT&CK links this technique to multiple groups and campaigns, including APT28, Lazarus Group, FIN7, Kimsuky, Volt Typhoon, Moonstone Sleet, MirrorFace, Operation Dream Job, and Operation Digital Eye. These relationships show the behavior is used across different actor types, but they do not prove current targeting of any specific organization. The most useful local work is to compare public organizational exposure against the roles, relationships, locations, and operating rhythms that would materially improve an adversary’s targeting.

The supplied ATT&CK object has no official detection guidance and only PRE-platform reconnaissance context. Telemetry and mitigations must be adapted to the organization’s public footprint, industry, disclosure obligations, partner model, and available monitoring. No claim of active exploitation, attribution, or detection coverage is made.

Official MITRE ATT&CK definition

Gather Victim Org Information

Adversaries may gather information about the victim's organization that can be used during targeting. Information about an organization may include a variety of details, including the names of divisions/departments, specifics of business operations, as well as the roles and responsibilities of key employees.

Adversaries may gather this information in various ways, such as direct elicitation via Phishing for Information. Information about an organization may also be exposed to adversaries via online or other accessible data sets (ex: Social Media or Search Victim-Owned Websites).[1][2] Gathering this information may reveal opportunities for other forms of reconnaissance (ex: Phishing for Information or Search Open Websites/Domains), establishing operational resources (ex: Establish Accounts or Compromise Accounts), and/or initial access (ex: Phishing or Trusted Relationship).

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

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.

ATT&CK relationship table

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.

4 rows
Domain ID Name Relationship / procedure
Enterprise T1591.002 Business Relationships Sub-technique Business Relationships subtechnique of this object.
Enterprise T1591.001 Determine Physical Locations Sub-technique Determine Physical Locations subtechnique of this object.
Enterprise T1591.004 Identify Roles Sub-technique Identify Roles subtechnique of this object.
Enterprise T1591.003 Identify Business Tempo Sub-technique Identify Business Tempo subtechnique of this object.
Associated objects

Groups, software, and campaigns

Group Enterprise

G0007: APT28

APT28 is a threat group that has been attributed to Russia's General Staff Main Intelligence Directorate (GRU) 85th Main Special Service Center (GTsSS) military unit 26165.[1][2] This group has been active since at least 2004.[3][4][5][6][7][8][9][10][11][12][13]

APT28 reportedly compromised the Hillary Clinton campaign, the Democratic National Committee, and the Democratic Congressional Campaign Committee in 2016 in an attempt to interfere with the U.S. presidential election.[5] In 2018, the US indicted five GRU Unit 26165 officers associated with APT28 for cyber operations (including close-access operations) conducted between 2014 and 2018 against the World Anti-Doping Agency (WADA), the US Anti-Doping Agency, a US nuclear facility, the Organization for the Prohibition of Chemical Weapons (OPCW), the Spiez Swiss Chemicals Laboratory, and other organizations.[14] Some of these were conducted with the assistance of GRU Unit 74455, which is also referred to as Sandworm Team.

Group Enterprise

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]

Group Enterprise

G0032: Lazarus Group

Lazarus Group is a North Korean state-sponsored cyber threat group attributed to the Reconnaissance General Bureau (RGB). [1] [2] Lazarus Group has been active since at least 2009 and is reportedly responsible for the November 2014 destructive wiper attack on Sony Pictures Entertainment, identified by Novetta as part of Operation Blockbuster. Malware used by Lazarus Group correlates to other reported campaigns, including Operation Flame, Operation 1Mission, Operation Troy, DarkSeoul, and Ten Days of Rain.[3]

North Korea’s cyber operations have shown a consistent pattern of adaptation, forming and reorganizing units as national priorities shift. These units frequently share personnel, infrastructure, malware, and tradecraft, making it difficult to attribute specific operations with high confidence. Public reporting often uses “Lazarus Group” as an umbrella term for multiple North Korean cyber operators conducting espionage, destructive attacks, and financially motivated campaigns.[4][5][6]

Group Enterprise

G1036: Moonstone Sleet

Moonstone Sleet is a North Korean-linked threat actor executing both financially motivated attacks and espionage operations. The group previously overlapped significantly with another North Korean-linked entity, Lazarus Group, but has differentiated its tradecraft since 2023. Moonstone Sleet is notable for creating fake companies and personas to interact with victim entities, as well as developing unique malware such as a variant delivered via a fully functioning game.[1]

Group Enterprise

G0046: FIN7

FIN7 is a financially-motivated threat group that has been active since 2013. FIN7 has targeted the retail, restaurant, hospitality, software, consulting, financial services, medical equipment, cloud services, media, food and beverage, transportation, pharmaceutical, and utilities industries in the United States. A portion of FIN7 was operated out of a front company called Combi Security and often used point-of-sale malware for targeting efforts. Since 2020, FIN7 shifted operations to big game hunting (BGH), including use of REvil ransomware and their own Ransomware-as-a-Service (RaaS), Darkside. FIN7 may be linked to the Carbanak Group, but multiple threat groups have been observed using Carbanak, leading these groups to be tracked separately.[1][2][3][4][5][6][7]

Group Enterprise

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.

Group Enterprise

G1017: Volt Typhoon

Volt Typhoon is a People's Republic of China (PRC) state-sponsored actor that has been active since at least 2021, primarily targeting critical infrastructure organizations in the US and its territories including Guam. Volt Typhoon's targeting and pattern of behavior have been assessed as pre-positioning to enable lateral movement to operational technology (OT) assets for potential destructive or disruptive attacks. Volt Typhoon has emphasized stealth in operations using web shells, living-off-the-land (LOTL) binaries, hands on keyboard activities, and stolen credentials.[1][2][3][4]. The group has leveraged compromised SOHO routers to proxy command and control traffic and obscure its infrastructure, activity associated with the KV botnet.[5].

Reporting indicates a separate initial access cluster, SYLVANITE, has been observed exploiting internet-facing edge devices and transferring access to Volt Typhoon, also tracked as VOLTZITE, for follow-on operations. [6]

Campaign Enterprise

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]

Campaign Enterprise

C0061: Operation Digital Eye

Operation Digital Eye was conducted in June and July of 2024 by suspected People's Republic of China (PRC)-nexus threat actors targeting business-to-business IT service providers in Southern Europe. Operation Digital Eye activity included the use of Visual Studio Code tunnels for command and control (C2) and custom lateral movement capabilities. Overlaps in tooling between Digital Eye and previous China-nexus campaigns, Operation Soft Cell and Operation Tainted Love, indicate the potential use of shared vendors or digital quartermasters.[1]

Relationship explorer

All related ATT&CK context

Mitigations

Mitigation direction

Change history

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 .

ATT&CK release
19.1
Object version
1.1
Created
Modified
Raw hash
e2d84aef54b29b33...
Imported snapshots across ATT&CK releases (1)
Release Bundle imported Object version Modified Status Raw hash
19.1 1.1 Current bundle e2d84aef54b2…
Raw source

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.

Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    ThreatPost Broadvoice Leak

    Seals, T. (2020, October 15). Broadvoice Leak Exposes 350M Records, Personal Voicemail Transcripts. Retrieved October 20, 2020.

    Open source URL
  2. [2]
    SEC EDGAR Search

    U.S. SEC. (n.d.). EDGAR - Search and Access. Retrieved November 17, 2024.

    Open source URL
  3. [3]
    mitre-attack T1591
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.