General

  • Target

    7489d6d9182cfb315a028a9670a1eaa7_JaffaCakes118

  • Size

    501KB

  • Sample

    240726-sek7fsycrb

  • MD5

    7489d6d9182cfb315a028a9670a1eaa7

  • SHA1

    6248b643e2700e60960d7ea7911926310d6bdb41

  • SHA256

    539cb4699daed68cce319ba88bb97ed2211321ab7d8342370bcd958f3de6af38

  • SHA512

    8e795753a7818a5818f29586b57750f6e397475299924624d4a27fb9a8c81194bf16b7c6af108dbc4961b222dfe7a3cfedcf8c7be040bde27b3cf6ec485dc4ea

  • SSDEEP

    6144:+pnVaARrQbqPwZQU+gr+h8Ug1Dgpfd+5R8Kyt9oXtzYYjsUE+ksQIPSkh7h/SL:Wnka8AHeb405Rt9Je4/Skh9/S

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

speeed.zapto.org:15963

speeed.hopto.org:15963

Mutex

DC_MUTEX-WLBBHZN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    3Vr9Alq967cJ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      7489d6d9182cfb315a028a9670a1eaa7_JaffaCakes118

    • Size

      501KB

    • MD5

      7489d6d9182cfb315a028a9670a1eaa7

    • SHA1

      6248b643e2700e60960d7ea7911926310d6bdb41

    • SHA256

      539cb4699daed68cce319ba88bb97ed2211321ab7d8342370bcd958f3de6af38

    • SHA512

      8e795753a7818a5818f29586b57750f6e397475299924624d4a27fb9a8c81194bf16b7c6af108dbc4961b222dfe7a3cfedcf8c7be040bde27b3cf6ec485dc4ea

    • SSDEEP

      6144:+pnVaARrQbqPwZQU+gr+h8Ug1Dgpfd+5R8Kyt9oXtzYYjsUE+ksQIPSkh7h/SL:Wnka8AHeb405Rt9Je4/Skh9/S

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • 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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks