Overview

overview

10

Static

static

3

taskhost.exe

windows7-x64

10

taskhost.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    taskhost.exe

  • Size

    1MB

  • Sample

    230722-nvay7sag77

  • MD5

    0d833c6509f350e0a15492597df2bda6

  • SHA1

    1f77b7eb4410f6e1c0e0f7b971a3c98b3f0a5f9f

  • SHA256

    d280fdf95c57cba365c15fc9c6371ada79734480812497c2244246cfdac52ca7

  • SHA512

    9e7ec8f4a756a2546c64850e0ca390788b9817984c1a91af55ffddfd3a010d7629478c2665c03a8a15d46377d66223f6937ac9d8d3d6bda5f9a1ee549ef16118

  • SSDEEP

    24576:Aam94ouZLkTDc90EVK7bsowfdCKWZQfgsVvGoYjQHFyHH:A2otPu0EVK7ooCbgsVQjQHOH

Score
10/10
darkcometguest16persistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

gameservice.ddns.net:4320

Mutex

DC_MUTEX-WBUNVXD

Attributes
  • InstallPath

    AudioDriver\taskhost.exe

  • gencode

    EWSsWwgyJrUD

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    AudioDriver

Targets

    • Target

      taskhost.exe

    • Size

      1MB

    • MD5

      0d833c6509f350e0a15492597df2bda6

    • SHA1

      1f77b7eb4410f6e1c0e0f7b971a3c98b3f0a5f9f

    • SHA256

      d280fdf95c57cba365c15fc9c6371ada79734480812497c2244246cfdac52ca7

    • SHA512

      9e7ec8f4a756a2546c64850e0ca390788b9817984c1a91af55ffddfd3a010d7629478c2665c03a8a15d46377d66223f6937ac9d8d3d6bda5f9a1ee549ef16118

    • SSDEEP

      24576:Aam94ouZLkTDc90EVK7bsowfdCKWZQfgsVvGoYjQHFyHH:A2otPu0EVK7ooCbgsVQjQHOH

    Score
    10/10
    darkcometguest16persistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

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

Resource Development

Reconnaissance

Tasks