Overview

overview

10

Static

static

10

Result.jpg.exe

windows7_x64

10

Result.jpg.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    94c3f397f31b5cc0873ba528bffc2ba819c0ed2b438da708c76be809ff5146b9

  • Size

    799KB

  • Sample

    220520-d9zk1agcd2

  • MD5

    ad17be0fa6b5e33cf22e87471c82f19f

  • SHA1

    0de39773d353df098a33c7ff214d4f18900286cc

  • SHA256

    94c3f397f31b5cc0873ba528bffc2ba819c0ed2b438da708c76be809ff5146b9

  • SHA512

    1c7c962777b4b2164177ee884fe425f15235666c60c2e3d85879954536dc90bf293fdd74d3b68d4a9b4ae4b9d0da38cfeeb07c34c8846e06f001266b6066eac1

Score
10/10
darkcomet1evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

1

C2

sadist.ddns.net:500

Mutex

DC_MUTEX-WDGJLC3

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    bg0tFwB3BTiD

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      Result.jpg.exe

    • Size

      1.2MB

    • MD5

      da81c76543b3f280abfaf1c04a820c8d

    • SHA1

      e746372c52ab53a7dcded6ffd497f10d3b84bda9

    • SHA256

      996d745b0948add2ef943870d637afb46d4463432df4cb766509ecaa1982a35a

    • SHA512

      8fe78aee184022b8a15646d1a847aed29e3bf463599d5b8b517a321cc876f53ebb170b03ccdddb2032a6ab420956bfd233c489e954044a93a4c7995ed41b3346

    Score
    10/10
    darkcomet1evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      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

    • 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

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks