General

  • Target

    5b91f5cb294f987aeeb2f60fbaf7a59b637ac9190b68d838de46dd56ee13c0ec

  • Size

    854KB

  • Sample

    221020-lw1j5sgcfl

  • MD5

    4c8396f8db1a485dc0b93651d8f7dbd0

  • SHA1

    ed5b2b872399519287c2a33f54ecd31337116711

  • SHA256

    5b91f5cb294f987aeeb2f60fbaf7a59b637ac9190b68d838de46dd56ee13c0ec

  • SHA512

    3d690b7664d6bb5d9c0c5fe17a02cd7450d717065e11a67cf4e13ffc5e3a0fe2a9836db48dfe8562eb83731c002f5fdc7882c9f1d73484da04496db9ce4f7f99

  • SSDEEP

    24576:OZ1xuVVjfFoynPaVBUR8f+kN10EBKACG9egjT+:uQDgok30B7ojT+

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

badzo.no-ip.org:80

Mutex

DC_MUTEX-82MKNGT

Attributes
  • InstallPath

    system32\wuapp.exe

  • gencode

    Gr6dTPRj3EsY

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    Microsoft Windows Update

Targets

    • Target

      5b91f5cb294f987aeeb2f60fbaf7a59b637ac9190b68d838de46dd56ee13c0ec

    • Size

      854KB

    • MD5

      4c8396f8db1a485dc0b93651d8f7dbd0

    • SHA1

      ed5b2b872399519287c2a33f54ecd31337116711

    • SHA256

      5b91f5cb294f987aeeb2f60fbaf7a59b637ac9190b68d838de46dd56ee13c0ec

    • SHA512

      3d690b7664d6bb5d9c0c5fe17a02cd7450d717065e11a67cf4e13ffc5e3a0fe2a9836db48dfe8562eb83731c002f5fdc7882c9f1d73484da04496db9ce4f7f99

    • SSDEEP

      24576:OZ1xuVVjfFoynPaVBUR8f+kN10EBKACG9egjT+:uQDgok30B7ojT+

    • 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

    • Executes dropped EXE

    • 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.

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks