General

  • Target

    8c30104c9da821a254c49dd59dce24af2de9e4b4e4bb86c30399f05d43fd77a3

  • Size

    338KB

  • Sample

    240417-p6nj4sgb59

  • MD5

    37a661284263dad9a1fe1557241f91f4

  • SHA1

    ead0498252da0a1822868d7c96eb6aa9eca4b019

  • SHA256

    8c30104c9da821a254c49dd59dce24af2de9e4b4e4bb86c30399f05d43fd77a3

  • SHA512

    e67cbd600f83b7bcaaed841c5c6542df98f72ea57bf1d799110df3024d6ff911b8d4ec52d4ab265bd28814b2eb460f7c703c86e81e20601429e96738666b46f5

  • SSDEEP

    6144:ZRxo6Z8Mhm7PoanTaypEo161h2B8lemetU5Uq6z25qE8JEn6w/V+hQRJdD8:ZRC67hodTa4Eo161hVb6z28EE1w/VeQi

Malware Config

Extracted

Family

darkcomet

Botnet

Hecker

C2

7.tcp.eu.ngrok.io:11791

Mutex

DC_MUTEX-GAFJ7KC

Attributes
  • InstallPath

    Runtime Broker.exe

  • gencode

    1NDoWjfTb2iN

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    RUNTIMEBROKHANDLER

Targets

    • Target

      712f8fe73fc9955808359aa68bb2e898c6661b4cf7de0f0dc27fd668dca17134.exe

    • Size

      658KB

    • MD5

      25b08da1a964836d5b6d64ee0bcf30e0

    • SHA1

      ad90af854d09a464b2ae958a93aa1cb713af1fb5

    • SHA256

      712f8fe73fc9955808359aa68bb2e898c6661b4cf7de0f0dc27fd668dca17134

    • SHA512

      45a5f0aac1d12fe33c5bceaa2a6b226d5fbb85c99c035c608686bc6143ef4c0abc15d197dc947fae4e441d234e43cf32396894e71f2f62f369f806dbf4a9f4bc

    • SSDEEP

      12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hj:KZ1xuVVjfFoynPaVBUR8f+kN10EBp

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • 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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks