Overview

overview

10

Static

static

3b93bbc5e1...7d.exe

windows7_x64

10

3b93bbc5e1...7d.exe

windows10_x64

10

Sharing

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General

  • Target

    3b93bbc5e1fe38dd279812cc19777eea51faf580c97d1713e8c54448f949647d

  • Size

    557KB

  • Sample

    201108-7kfq9tbk4j

  • MD5

    316ced1fc09909dff0b75efbd0da2ae0

  • SHA1

    2d5cb13b6c956f8a7b6307d7f629a56117d2d9ee

  • SHA256

    3b93bbc5e1fe38dd279812cc19777eea51faf580c97d1713e8c54448f949647d

  • SHA512

    fca713a6489bf4d87be23d9fbc6e9aa6fccf8a6329d1abed6e2e28bf2286f2fd78486cd77111eabed293f29fac81bfa1fbd9c8f9ebdb1452cd5af9eb41bdd5ad

Score
10/10
darkcomet2020okt999+++4evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

2020okt999+++4

C2

sandyclark255.hopto.org:1605

Mutex

DC_MUTEX-D50H81E

Attributes
  • InstallPath

    word64l.exe

  • gencode

    0zgSCfjSH24W

  • install

    true

  • offline_keylogger

    true

  • password

    hhhhhh

  • persistence

    true

  • reg_key

    winworde

Targets

    • Target

      3b93bbc5e1fe38dd279812cc19777eea51faf580c97d1713e8c54448f949647d

    • Size

      557KB

    • MD5

      316ced1fc09909dff0b75efbd0da2ae0

    • SHA1

      2d5cb13b6c956f8a7b6307d7f629a56117d2d9ee

    • SHA256

      3b93bbc5e1fe38dd279812cc19777eea51faf580c97d1713e8c54448f949647d

    • SHA512

      fca713a6489bf4d87be23d9fbc6e9aa6fccf8a6329d1abed6e2e28bf2286f2fd78486cd77111eabed293f29fac81bfa1fbd9c8f9ebdb1452cd5af9eb41bdd5ad

    Score
    10/10
    darkcomet2020okt999+++4evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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

Tasks