General

  • Target

    JaffaCakes118_40e9a0bda8ece773fd8b1d5ae8aae55f

  • Size

    396KB

  • Sample

    250302-shvkasxmy5

  • MD5

    40e9a0bda8ece773fd8b1d5ae8aae55f

  • SHA1

    20cddea0425c38e0c393b1f65c7f53d6933e66a4

  • SHA256

    3c0f2a21478324adb7882098b3ef2c76f3f5862cd64f747f96e7d088458d1afc

  • SHA512

    596685a7473b0a410cfdf4420a921706851ec6b02c3747c0f0612047d49c46399b72f6ffef8e84998280287bde78838830520bf38173b8cf0a666c3392e7571e

  • SSDEEP

    6144:PrZ+XoQ1rluPH3mmZZWP5IxYyXLx0WR7aSKMHWO7Hbjv6eblzZnm+SAu2h:PrZ+Frlu/3JWoYxWghMH9LbjvlbmTt2h

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-1Y924R2

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2C9iuvJHDQMJ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target

      JaffaCakes118_40e9a0bda8ece773fd8b1d5ae8aae55f

    • Size

      396KB

    • MD5

      40e9a0bda8ece773fd8b1d5ae8aae55f

    • SHA1

      20cddea0425c38e0c393b1f65c7f53d6933e66a4

    • SHA256

      3c0f2a21478324adb7882098b3ef2c76f3f5862cd64f747f96e7d088458d1afc

    • SHA512

      596685a7473b0a410cfdf4420a921706851ec6b02c3747c0f0612047d49c46399b72f6ffef8e84998280287bde78838830520bf38173b8cf0a666c3392e7571e

    • SSDEEP

      6144:PrZ+XoQ1rluPH3mmZZWP5IxYyXLx0WR7aSKMHWO7Hbjv6eblzZnm+SAu2h:PrZ+Frlu/3JWoYxWghMH9LbjvlbmTt2h

    • Darkcomet

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

    • Darkcomet family

    • 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

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks