Overview

overview

10

Static

static

f462621ded...20.exe

windows7_x64

10

f462621ded...20.exe

windows10_x64

10

Sharing

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General

  • Target

    f462621dede3d3549e07ad96afb2e5a83cdde53c72a1f6ffd8991fab0d5bf520

  • Size

    1.5MB

  • Sample

    201106-wf8yw669na

  • MD5

    e0d467443093da7d4657af093a638beb

  • SHA1

    5001e2e1decef170eea09de61d56f122a4394669

  • SHA256

    f462621dede3d3549e07ad96afb2e5a83cdde53c72a1f6ffd8991fab0d5bf520

  • SHA512

    3d7fe94a6d2e0872f6dd73806ef249d99be33988774ce08dd82cc96b60aa31c3b4230d35753757d0d4af054f56f8fce71eaac2d46f87604a7dd9211b64b51b7d

Score
10/10
darkcomet���evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

���

C2

densyurchikbuc.ddns.net:1604

Mutex

DC_MUTEX-7NQYZ7F

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Ro21g4F9j7W7

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      f462621dede3d3549e07ad96afb2e5a83cdde53c72a1f6ffd8991fab0d5bf520

    • Size

      1.5MB

    • MD5

      e0d467443093da7d4657af093a638beb

    • SHA1

      5001e2e1decef170eea09de61d56f122a4394669

    • SHA256

      f462621dede3d3549e07ad96afb2e5a83cdde53c72a1f6ffd8991fab0d5bf520

    • SHA512

      3d7fe94a6d2e0872f6dd73806ef249d99be33988774ce08dd82cc96b60aa31c3b4230d35753757d0d4af054f56f8fce71eaac2d46f87604a7dd9211b64b51b7d

    Score
    10/10
    darkcomet���evasionpersistencerattrojan

    • 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

    • 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