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General

  • Target

    JaffaCakes118_682da2ccae76111c09259cd266455b80

  • Size

    923KB

  • Sample

    250102-zmwfqavpgw

  • MD5

    682da2ccae76111c09259cd266455b80

  • SHA1

    e38abd3d0c8c9a35f96530394665fc5b430608fe

  • SHA256

    1645887545149105df230d360c1d505a197025e5dff6cb231dcc4415f5a966e2

  • SHA512

    ea916addaa81b685e410e75b52f3b1ad1883c2263cd272ba2ceb6d0a5b032fe8f23cfee15a22f501a0f61af4dc2b6315212fbc52e5a464dab2c7e6635f524d6c

  • SSDEEP

    12288:6t62RB8MItKik4O8LsgGTXduAqnr0oObvIxHtpdvm+cpim9mMvOUO1Yx1KBkAm/Y:nJMjNL8LXbyj2ZNc0fiO5YxBAGxc

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-DVZCVWJ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    z1Hiq9E1g4Nq

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      JaffaCakes118_682da2ccae76111c09259cd266455b80

    • Size

      923KB

    • MD5

      682da2ccae76111c09259cd266455b80

    • SHA1

      e38abd3d0c8c9a35f96530394665fc5b430608fe

    • SHA256

      1645887545149105df230d360c1d505a197025e5dff6cb231dcc4415f5a966e2

    • SHA512

      ea916addaa81b685e410e75b52f3b1ad1883c2263cd272ba2ceb6d0a5b032fe8f23cfee15a22f501a0f61af4dc2b6315212fbc52e5a464dab2c7e6635f524d6c

    • SSDEEP

      12288:6t62RB8MItKik4O8LsgGTXduAqnr0oObvIxHtpdvm+cpim9mMvOUO1Yx1KBkAm/Y:nJMjNL8LXbyj2ZNc0fiO5YxBAGxc

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks