General

  • Target

    6e9b8f371a012ec66e6f90c6cdcd4115e6bdfde35a84333d9bb54adbd34a0516

  • Size

    553KB

  • Sample

    221123-s6mvcsdb75

  • MD5

    8b2b64f06215868b96106157353a0f08

  • SHA1

    1772a263d62f448b1bc3cb22b24bf81f662f49c7

  • SHA256

    6e9b8f371a012ec66e6f90c6cdcd4115e6bdfde35a84333d9bb54adbd34a0516

  • SHA512

    d4e9593b3992f741295ef0f331670433762bf203eca3e31c4f87bd0fb12cbe1f157aad58d5b79fd7f183689a52f1a38bc51bc6f53328b74a0f340970557f37df

  • SSDEEP

    12288:qRWNcr8oxnJXg0elfgWgPxqgqPgn/8v0fOwYh:ZNBIJX+ZgkPg/gYOwYh

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

raidbomber.no-ip.org:1700

Mutex

DC_MUTEX-EG9SQM8

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    3y3wMVwFYYqF

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      6e9b8f371a012ec66e6f90c6cdcd4115e6bdfde35a84333d9bb54adbd34a0516

    • Size

      553KB

    • MD5

      8b2b64f06215868b96106157353a0f08

    • SHA1

      1772a263d62f448b1bc3cb22b24bf81f662f49c7

    • SHA256

      6e9b8f371a012ec66e6f90c6cdcd4115e6bdfde35a84333d9bb54adbd34a0516

    • SHA512

      d4e9593b3992f741295ef0f331670433762bf203eca3e31c4f87bd0fb12cbe1f157aad58d5b79fd7f183689a52f1a38bc51bc6f53328b74a0f340970557f37df

    • SSDEEP

      12288:qRWNcr8oxnJXg0elfgWgPxqgqPgn/8v0fOwYh:ZNBIJX+ZgkPg/gYOwYh

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Modifies security service

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Executes dropped EXE

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks