General

  • Target

    689d3b376444629b2db7f4f4bbf194b0_JaffaCakes118

  • Size

    601KB

  • Sample

    240723-x6vx7atdrl

  • MD5

    689d3b376444629b2db7f4f4bbf194b0

  • SHA1

    89361e65979066937b7d24720ac8e5a107cfc60e

  • SHA256

    57e57b8eefd5a9f717396871df8bb5572ec6b94ab0985a551c838414317bebda

  • SHA512

    94831e1a8625c8c11ff30a68870ddea0a71dcfbf1667939b12f6432ec0dfd66a609a51dd5008e15a381bc4632bb6940ed85abdcea48e505b5f78cb20ba8c9c61

  • SSDEEP

    12288:v6Wq4aaE6KwyF5L0Y2D1PqL2OlxFzU+RaO0kxDRu0h1nGiJdZttE37U6I:tthEVaPqL2OlXPfLNhPGgdleI

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    HAC9L4KeLiZp

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      689d3b376444629b2db7f4f4bbf194b0_JaffaCakes118

    • Size

      601KB

    • MD5

      689d3b376444629b2db7f4f4bbf194b0

    • SHA1

      89361e65979066937b7d24720ac8e5a107cfc60e

    • SHA256

      57e57b8eefd5a9f717396871df8bb5572ec6b94ab0985a551c838414317bebda

    • SHA512

      94831e1a8625c8c11ff30a68870ddea0a71dcfbf1667939b12f6432ec0dfd66a609a51dd5008e15a381bc4632bb6940ed85abdcea48e505b5f78cb20ba8c9c61

    • SSDEEP

      12288:v6Wq4aaE6KwyF5L0Y2D1PqL2OlxFzU+RaO0kxDRu0h1nGiJdZttE37U6I:tthEVaPqL2OlXPfLNhPGgdleI

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • 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

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

MITRE ATT&CK Enterprise v15

Tasks