General

  • Target

    JaffaCakes118_0853ce9cf7687d448b1a36911a6f6f88

  • Size

    827KB

  • Sample

    250219-3gmhea1pcv

  • MD5

    0853ce9cf7687d448b1a36911a6f6f88

  • SHA1

    2437e3fc9c004641e93214baf3b56842e531e877

  • SHA256

    de8cbea03deba03ac845b1f7d6d86594c201de88fad685f6b8c8c5d021c2d277

  • SHA512

    da25f5641fc07f955a98dc099d86ec156352e250aff10e9fddba9735b6f14e0dfef9650a78959a90ea51740af9b6535632e6a05861ae7ac3c20aee4e66231b15

  • SSDEEP

    24576:siys4aTCBlDnSzJLbT6EorIpkG0oZJnmg2:siysu2JnT6hG0+2

Malware Config

Extracted

Family

darkcomet

Botnet

Guest1

C2

gauss89.no-ip.biz:1604

Mutex

DC_MUTEX-8APQ8RJ

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    zA5QvT71kw5Y

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_0853ce9cf7687d448b1a36911a6f6f88

    • Size

      827KB

    • MD5

      0853ce9cf7687d448b1a36911a6f6f88

    • SHA1

      2437e3fc9c004641e93214baf3b56842e531e877

    • SHA256

      de8cbea03deba03ac845b1f7d6d86594c201de88fad685f6b8c8c5d021c2d277

    • SHA512

      da25f5641fc07f955a98dc099d86ec156352e250aff10e9fddba9735b6f14e0dfef9650a78959a90ea51740af9b6535632e6a05861ae7ac3c20aee4e66231b15

    • SSDEEP

      24576:siys4aTCBlDnSzJLbT6EorIpkG0oZJnmg2:siysu2JnT6hG0+2

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks