General

  • Target
    676702084348dee449906e0c22a29673_JaffaCakes118
  • Size 1.5MB
  • Sample240723-nlm76stbra
  • SHA256 1f5511a403731f2684d7ef1bfd0f4dab2f5aa72ef41980e34c9918bfee973fd6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • defeult

C2
  • someonei.zapto.org:1604

Mutex
  • DC_MUTEX-84ZPHN0

Attributes
  • InstallPath

    MSDCSC\crss.exe

  • gencode

    jdDHAcgEiQiK

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    crss

Targets

    • Target
      676702084348dee449906e0c22a29673_JaffaCakes118
    • Size 1.5MB
    • SHA256 1f5511a403731f2684d7ef1bfd0f4dab2f5aa72ef41980e34c9918bfee973fd6
    • MD5 SHA1 SHA512 SSDEEP
    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Drops file in Drivers directory

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks