Overview

overview

10

Static

static

10

6fe18b376f...49.exe

windows7-x64

10

6fe18b376f...49.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6fe18b376f52890d3a0800621c00e043996dbd2027899f84173b13b0b9394349

  • Size

    791KB

  • Sample

    221124-ehgfsaff65

  • MD5

    32472c66a6a689be7e6903f1f360cec6

  • SHA1

    29dfb3a5e493ae6cdf90bcf856ac9c497c4889ea

  • SHA256

    6fe18b376f52890d3a0800621c00e043996dbd2027899f84173b13b0b9394349

  • SHA512

    aad8455001ed3d53d6e05fec658cdb179798e5427143442fb41a5a7f1fd6ff402270773934478a5211bd2fe19292b96f7d91db723361a6d081602756305ebe9a

  • SSDEEP

    12288:A9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hurfMb/:kZ1xuVVjfFoynPaVBUR8f+kN10EBwgb/

Score
10/10
darkcometguest22evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest22

C2

leunam.ddns.net:1604

Mutex

DC_MUTEX-CYTRPNC

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    NlD3lKCPlj6p

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      6fe18b376f52890d3a0800621c00e043996dbd2027899f84173b13b0b9394349

    • Size

      791KB

    • MD5

      32472c66a6a689be7e6903f1f360cec6

    • SHA1

      29dfb3a5e493ae6cdf90bcf856ac9c497c4889ea

    • SHA256

      6fe18b376f52890d3a0800621c00e043996dbd2027899f84173b13b0b9394349

    • SHA512

      aad8455001ed3d53d6e05fec658cdb179798e5427143442fb41a5a7f1fd6ff402270773934478a5211bd2fe19292b96f7d91db723361a6d081602756305ebe9a

    • SSDEEP

      12288:A9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hurfMb/:kZ1xuVVjfFoynPaVBUR8f+kN10EBwgb/

    Score
    10/10
    darkcometguest22evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks