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MITRE ATT&CK® Malware

S1075: KOPILUWAK

KOPILUWAK is a JavaScript-based reconnaissance tool that has been used for victim profiling and C2 since at least 2017.[1]

EnterpriseS1075MalwareObject v1.0Modified
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S1075: KOPILUWAK describes [KOPILUWAK](https://attack.mitre.org/software/S1075) is a JavaScript-based reconnaissance tool that has been used for victim profiling and C2 since at least 2017.(Citation: Mandiant Suspected Turla Campaign February 2023)

Executive priority

S1075: KOPILUWAK is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.

Technical view

Security teams should validate S1075: KOPILUWAK by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.

Likely telemetry

  • Official ATT&CK relationships and object metadata
  • Network, endpoint, and security-tool telemetry

Detection direction

  • Validate whether S1075: KOPILUWAK appears in your detection coverage and tabletop scenarios.
  • Use the object to align executive risk language with SOC, incident response, and detection engineering work.
  • Do not treat ATT&CK relationship context as attribution without corroborating evidence.

Mitigation priorities

  • Map the object to existing controls and identify missing telemetry or response ownership.
  • Prioritize mitigations that reduce exposure on the listed platforms and tactics.
  • Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits

Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.

This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Official MITRE ATT&CK definition

KOPILUWAK

KOPILUWAK is a JavaScript-based reconnaissance tool that has been used for victim profiling and C2 since at least 2017.[1]

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

Techniques used

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.

13 rows
DomainIDNameRelationship / procedure
EnterpriseT1071.001Web ProtocolsSub-technique

KOPILUWAK has used HTTP POST requests to send data to C2.[1]

EnterpriseT1204.002Malicious FileSub-technique

KOPILUWAK has gained execution through malicious attachments.[1]

EnterpriseT1057Process Discovery

KOPILUWAK can enumerate current running processes on the targeted machine.[1]

EnterpriseT1135Network Share Discovery

KOPILUWAK can use netstat and Net to discover network shares.[1]

EnterpriseT1016System Network Configuration Discovery

KOPILUWAK can use Arp to discover a target's network configuration setttings.[1]

EnterpriseT1041Exfiltration Over C2 Channel

KOPILUWAK has exfiltrated collected data to its C2 via POST requests.[1]

EnterpriseT1680Local Storage Discovery

KOPILUWAK can discover logical drive information on compromised hosts.[1]

EnterpriseT1049System Network Connections Discovery

KOPILUWAK can use netstat, Arp, and Net to discover current TCP connections.[1]

EnterpriseT1566.001Spearphishing AttachmentSub-technique

KOPILUWAK has been delivered to victims as a malicious email attachment.[1]

EnterpriseT1005Data from Local System

KOPILUWAK can gather information from compromised hosts.[1]

EnterpriseT1074.001Local Data StagingSub-technique

KOPILUWAK has piped the results from executed C2 commands to `%TEMP%\result2.dat` on the local machine.[1]

EnterpriseT1059.007JavaScriptSub-technique

KOPILUWAK had used Javascript to perform its core functions.[1]

EnterpriseT1033System Owner/User Discovery

KOPILUWAK can conduct basic network reconnaissance on the victim machine with `whoami`, to get user details.[1]

Associated objects

Groups, software, and campaigns

GroupEnterprise

G0010: Turla

Turla is a cyber espionage threat group that has been attributed to Russia's Federal Security Service (FSB). They have compromised victims in over 50 countries since at least 2004, spanning a range of industries including government, embassies, military, education, research and pharmaceutical companies. Turla is known for conducting watering hole and spearphishing campaigns, and leveraging in-house tools and malware, such as Uroburos.[1][2][3][4][5]

Relationship explorer

All related ATT&CK context

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
19.2
Object version
1.0
Created
Modified
Raw hash
7cc265b7d6a321ef...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.0Current bundle7cc265b7d6a3…
19.11.0Older bundle7cc265b7d6a3…
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]
    Mandiant Suspected Turla Campaign February 2023

    Hawley, S. et al. (2023, February 2). Turla: A Galaxy of Opportunity. Retrieved May 15, 2023.

    Open source URL
  2. [2]
    mitre-attackS1075
    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.