Overview

overview

10

Static

static

ba8efd1c3b...b6.exe

windows7-x64

10

ba8efd1c3b...b6.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ba8efd1c3b16d2324a24b74decbd3cf18c1c810ccb6b26713c7dbea9586c74b6

  • Size

    1.2MB

  • Sample

    221130-2h4mmsbd79

  • MD5

    4e87cf628a36e2d160b67954b934b2cc

  • SHA1

    f8eae5f87bae52461e2a2a790c058765d5dd9751

  • SHA256

    ba8efd1c3b16d2324a24b74decbd3cf18c1c810ccb6b26713c7dbea9586c74b6

  • SHA512

    9ba4bf4094c03419f844c854c0a9407bbbe809470a66e7fd1f0d22eea64ee89858b68374b8d534f99de197e4f622f324e6c78ae2691b91f4303dd432e6f92f61

  • SSDEEP

    24576:yB6A6q4kZl5WRHDP/14mohqsODOeDVs2xS/VtRlw1TVf+tEoJL5LlpcE7my:y6qR9WRjPlohmtxS/Vvlw3olvvD

Score
10/10
darkcometevasionpersistencerattrojan

Malware Config

Targets

    • Target

      ba8efd1c3b16d2324a24b74decbd3cf18c1c810ccb6b26713c7dbea9586c74b6

    • Size

      1.2MB

    • MD5

      4e87cf628a36e2d160b67954b934b2cc

    • SHA1

      f8eae5f87bae52461e2a2a790c058765d5dd9751

    • SHA256

      ba8efd1c3b16d2324a24b74decbd3cf18c1c810ccb6b26713c7dbea9586c74b6

    • SHA512

      9ba4bf4094c03419f844c854c0a9407bbbe809470a66e7fd1f0d22eea64ee89858b68374b8d534f99de197e4f622f324e6c78ae2691b91f4303dd432e6f92f61

    • SSDEEP

      24576:yB6A6q4kZl5WRHDP/14mohqsODOeDVs2xS/VtRlw1TVf+tEoJL5LlpcE7my:y6qR9WRjPlohmtxS/Vvlw3olvvD

    Score
    10/10
    darkcometevasionpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks