Overview

overview

10

Static

static

10

9c5d33e58b...b9.exe

windows7-x64

10

9c5d33e58b...b9.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    9c5d33e58b7ef0eeb97ed7fe1f74f300949e9cab6e2354b0ad1cd3dc756bfcb9
  • Size 349KB
  • Sample250221-e5r6sstkfm
  • SHA256 9c5d33e58b7ef0eeb97ed7fe1f74f300949e9cab6e2354b0ad1cd3dc756bfcb9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojanupx

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • Guest16

C2

  • 5.178.3.137:1604

Mutex

  • DC_MUTEX-R0H3Q6N

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7JuUygohJeRF

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target
      9c5d33e58b7ef0eeb97ed7fe1f74f300949e9cab6e2354b0ad1cd3dc756bfcb9
    • Size 349KB
    • SHA256 9c5d33e58b7ef0eeb97ed7fe1f74f300949e9cab6e2354b0ad1cd3dc756bfcb9
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    darkcometguest16defense_evasiondiscoverypersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • 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

      persistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks