Overview

overview

10

Static

static

10

afb6012b92...af.exe

windows7-x64

10

afb6012b92...af.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    afb6012b92eaea693ffbb6ad9000d729fabadd44dab0da7d9b1386d4cfacf7af

  • Size

    253KB

  • Sample

    220725-cnyadaafhp

  • MD5

    19bc4cf35e9543073c59853085837019

  • SHA1

    d86e8c0747c9a1de28f8f9242ac7a08049d7d7bc

  • SHA256

    afb6012b92eaea693ffbb6ad9000d729fabadd44dab0da7d9b1386d4cfacf7af

  • SHA512

    033a00f12bd0c035175594b742a10405109bdec8b8e07ba86cfcda7b141c4e2b5803446a86640ff89c89b42e0bcc73309da2d54d0311d8b2565bdc1f75d7a574

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

bdsm32.ddns.net:1604

bdsm32.ddns.net:27015
Mutex

DC_MUTEX-0PJGSJG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    oM938oV7BtsY

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      afb6012b92eaea693ffbb6ad9000d729fabadd44dab0da7d9b1386d4cfacf7af

    • Size

      253KB

    • MD5

      19bc4cf35e9543073c59853085837019

    • SHA1

      d86e8c0747c9a1de28f8f9242ac7a08049d7d7bc

    • SHA256

      afb6012b92eaea693ffbb6ad9000d729fabadd44dab0da7d9b1386d4cfacf7af

    • SHA512

      033a00f12bd0c035175594b742a10405109bdec8b8e07ba86cfcda7b141c4e2b5803446a86640ff89c89b42e0bcc73309da2d54d0311d8b2565bdc1f75d7a574

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
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