General

  • Target

    rwrqrqrq.exe

  • Size

    658KB

  • Sample

    241025-brzrya1bnr

  • MD5

    68cb9c61d6eb5f11e8107b166fef83e2

  • SHA1

    106f56b444c63b0487eef32f53accb892a6beb0b

  • SHA256

    31c4d97466554dd0511b6226a4877f176a49d2f41a90656b399de3a3a1081245

  • SHA512

    b057bb8ba484657b1311351703bb15e4e6148f4e3f2827198f062706b65b5f998d34be658b21c3877c9bc87cf1745b8c5eb500f7f6c01996286f420686d393c9

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hv:KZ1xuVVjfFoynPaVBUR8f+kN10EB9

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

8.tcp.us-cal-1.ngrok.io:18582

Mutex

DC_MUTEX-84CFJ9A

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    WlVKwcLuNaTo

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      rwrqrqrq.exe

    • Size

      658KB

    • MD5

      68cb9c61d6eb5f11e8107b166fef83e2

    • SHA1

      106f56b444c63b0487eef32f53accb892a6beb0b

    • SHA256

      31c4d97466554dd0511b6226a4877f176a49d2f41a90656b399de3a3a1081245

    • SHA512

      b057bb8ba484657b1311351703bb15e4e6148f4e3f2827198f062706b65b5f998d34be658b21c3877c9bc87cf1745b8c5eb500f7f6c01996286f420686d393c9

    • SSDEEP

      12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hv:KZ1xuVVjfFoynPaVBUR8f+kN10EB9

    • 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

    • Windows security modification

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks