General

  • Target

    JaffaCakes118_1615b480d567a07954c274467f257000

  • Size

    841KB

  • Sample

    250222-aj15cstqgr

  • MD5

    1615b480d567a07954c274467f257000

  • SHA1

    844d3a68b7062e21f0dda12eea0536f1cf55becc

  • SHA256

    689f36685dad88807aa3b5ad0a5d9a1dc1b3c2981a8fed14f8350e7b7a4f1bb4

  • SHA512

    e6adc547973dd760d36adad09f9d0a79e30524fbd5c0db82a36c026f2274717ca8e9788bd0a8bb600cf9406630c4d45ca01ea6e0d6fa1bb21e1cc6acadc7cec1

  • SSDEEP

    12288:BDGRFBsZyYPBjRUowOrhpjW4HyzCbBZ5FYdGPKDFe/WunlZHJ1PeM9IcK2+Y9V+o:BSxifRZhvj1SClZOJ5ulZHLac5zV+S9

Malware Config

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Extracted

Family

darkcomet

Botnet

Guest16

C2

hgjjhjhhj.no-ip.biz:20000

Mutex

DC_MUTEX-ME65VJY

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    M9hkXC4EKetA

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

rc4.plain

Targets

    • Target

      JaffaCakes118_1615b480d567a07954c274467f257000

    • Size

      841KB

    • MD5

      1615b480d567a07954c274467f257000

    • SHA1

      844d3a68b7062e21f0dda12eea0536f1cf55becc

    • SHA256

      689f36685dad88807aa3b5ad0a5d9a1dc1b3c2981a8fed14f8350e7b7a4f1bb4

    • SHA512

      e6adc547973dd760d36adad09f9d0a79e30524fbd5c0db82a36c026f2274717ca8e9788bd0a8bb600cf9406630c4d45ca01ea6e0d6fa1bb21e1cc6acadc7cec1

    • SSDEEP

      12288:BDGRFBsZyYPBjRUowOrhpjW4HyzCbBZ5FYdGPKDFe/WunlZHJ1PeM9IcK2+Y9V+o:BSxifRZhvj1SClZOJ5ulZHLac5zV+S9

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks