General

  • Target

    105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9N.exe

  • Size

    710KB

  • Sample

    241129-pnc1naznbm

  • MD5

    9c75a48f5d740cc3efc84d89a83ee050

  • SHA1

    c589c7813398d1286292087a7525b4e441d78216

  • SHA256

    105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9

  • SHA512

    974c5b6232a0ced575f856c0f9ec76e4a6e663f57509a1b2130f942d84b61f1bdb96ef49544bdfbddc08f6e6e765f1d51ef96f79d93d4e9609dd606f03885851

  • SSDEEP

    12288:a7KQsRFS7dBOgfKxJAoxRYUUFAc0RUzVBAvRj3chpn6mDwhT6NFqKY9JXt9bZ88r:dQs6rFS3lxZCiyzDdp6mDwhT6NFqKi9V

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-94D01B6

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    72xJLArihnk5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9N.exe

    • Size

      710KB

    • MD5

      9c75a48f5d740cc3efc84d89a83ee050

    • SHA1

      c589c7813398d1286292087a7525b4e441d78216

    • SHA256

      105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9

    • SHA512

      974c5b6232a0ced575f856c0f9ec76e4a6e663f57509a1b2130f942d84b61f1bdb96ef49544bdfbddc08f6e6e765f1d51ef96f79d93d4e9609dd606f03885851

    • SSDEEP

      12288:a7KQsRFS7dBOgfKxJAoxRYUUFAc0RUzVBAvRj3chpn6mDwhT6NFqKY9JXt9bZ88r:dQs6rFS3lxZCiyzDdp6mDwhT6NFqKi9V

    • Darkcomet

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

    • Darkcomet family

    • 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

    • Windows security modification

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks