Overview

overview

10

Static

static

cb5d869480...e3.exe

windows7_x64

10

cb5d869480...e3.exe

windows10_x64

10

Sharing

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General

  • Target

    cb5d869480fadf9ac88734a531f24ae3

  • Size

    384KB

  • Sample

    201026-ch9jw79116

  • MD5

    cb5d869480fadf9ac88734a531f24ae3

  • SHA1

    04a2cea38e15c21d3dc143e0f7d17ffc0432a748

  • SHA256

    8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

  • SHA512

    fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

jgcgame.ddns.net:1604

jgcgame.ddns.net:8080
Mutex

DC_MUTEX-YKH6571

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    uRgFclvSN3Xu

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      cb5d869480fadf9ac88734a531f24ae3

    • Size

      384KB

    • MD5

      cb5d869480fadf9ac88734a531f24ae3

    • SHA1

      04a2cea38e15c21d3dc143e0f7d17ffc0432a748

    • SHA256

      8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

    • SHA512

      fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks