Overview

overview

10

Static

static

39b3577f62...cd.exe

windows7-x64

10

39b3577f62...cd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

  • Size

    1.2MB

  • Sample

    221123-rxgfjshg26

  • MD5

    9fc38321f1909639ad798581695a4356

  • SHA1

    1909410463a9e964dd2053c36ac8d90e8bc515b5

  • SHA256

    39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

  • SHA512

    1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0

  • SSDEEP

    24576:0FJlc+Eeep4XeQs1HoITBZVYW1yvIjls+54RTGEKFEVlvsfAvbIL+LHLRVe:amdYoHo4ZVYW8vIq+5YGil88Ve

Score
10/10
darkcometunknownevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

UNKNOWN

C2

abdulzokhan.no-ip.org:2323

Mutex

DC_MUTEX-UP6NB9G

Attributes
  • InstallPath

    NokiaOviSuite.exe

  • gencode

    qEy8YaRgYauv

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    NokiaOviSuite

Targets

    • Target

      39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

    • Size

      1.2MB

    • MD5

      9fc38321f1909639ad798581695a4356

    • SHA1

      1909410463a9e964dd2053c36ac8d90e8bc515b5

    • SHA256

      39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

    • SHA512

      1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0

    • SSDEEP

      24576:0FJlc+Eeep4XeQs1HoITBZVYW1yvIjls+54RTGEKFEVlvsfAvbIL+LHLRVe:amdYoHo4ZVYW8vIq+5YGil88Ve

    Score
    10/10
    darkcometunknownevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

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