Overview

overview

10

Static

static

10

fa64cfb37e...ce.exe

windows7_x64

10

fa64cfb37e...ce.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    fa64cfb37edd229bee2a1cf4008bbe2748173784b3e154936aa5268e76c7c8ce

  • Size

    823KB

  • Sample

    220520-2twfeagad2

  • MD5

    d6362c8c1b0ed8b8f70c252da342cf57

  • SHA1

    00e518e0b1505abac2e3a3fd87cbf88b08ae4bac

  • SHA256

    fa64cfb37edd229bee2a1cf4008bbe2748173784b3e154936aa5268e76c7c8ce

  • SHA512

    69350ae820706c21ad369e16e43e649e602986e39981c786d9b67551e696ed7160cb111d7c077283cfdff18281dbe545605daa313623081970cdd4dc54edd30f

Score
10/10
darkcometumutevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

umut

C2

testediliyor.duckdns.org:1604

Mutex

DC_MUTEX-S6FT1X7

Attributes
  • InstallPath

    MSDCSC\yasef.exe

  • gencode

    okXMhdJ5gNUH

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      fa64cfb37edd229bee2a1cf4008bbe2748173784b3e154936aa5268e76c7c8ce

    • Size

      823KB

    • MD5

      d6362c8c1b0ed8b8f70c252da342cf57

    • SHA1

      00e518e0b1505abac2e3a3fd87cbf88b08ae4bac

    • SHA256

      fa64cfb37edd229bee2a1cf4008bbe2748173784b3e154936aa5268e76c7c8ce

    • SHA512

      69350ae820706c21ad369e16e43e649e602986e39981c786d9b67551e696ed7160cb111d7c077283cfdff18281dbe545605daa313623081970cdd4dc54edd30f

    Score
    10/10
    darkcometumutevasionpersistencerattrojan

    • 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

    • 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

    • Drops file in System32 directory

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks