Overview

overview

10

Static

static

8

fe33af96e2...b8.exe

windows7_x64

10

fe33af96e2...b8.exe

windows10_x64

10

Sharing

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General

  • Target

    fe33af96e241d26bfa10793a2b8fb37667c10c8b17c5f634d8d91d20d038d7b8

  • Size

    252KB

  • Sample

    201111-qk1aee1vea

  • MD5

    a20873c234b2d2c5af626ff4e1f4c6c4

  • SHA1

    99064fca19c54039e58db4b611e56b80f1fbe5ec

  • SHA256

    fe33af96e241d26bfa10793a2b8fb37667c10c8b17c5f634d8d91d20d038d7b8

  • SHA512

    fedf17e9bc9402644b906071c27163d3e22ee6e20551cb0be0e7b8a37298909f7b3ae87a423c849d9de8cc751c892fbcee606dccd90fe031daca9daf496046dc

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    aDFqoxfKfrcR

  • install

    true

  • offline_keylogger

    true

  • password

    82121020202222

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      fe33af96e241d26bfa10793a2b8fb37667c10c8b17c5f634d8d91d20d038d7b8

    • Size

      252KB

    • MD5

      a20873c234b2d2c5af626ff4e1f4c6c4

    • SHA1

      99064fca19c54039e58db4b611e56b80f1fbe5ec

    • SHA256

      fe33af96e241d26bfa10793a2b8fb37667c10c8b17c5f634d8d91d20d038d7b8

    • SHA512

      fedf17e9bc9402644b906071c27163d3e22ee6e20551cb0be0e7b8a37298909f7b3ae87a423c849d9de8cc751c892fbcee606dccd90fe031daca9daf496046dc

    Score
    10/10
    darkcometguest16persistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks