Overview

overview

10

Static

static

1

a298d3c687...05.exe

windows7-x64

10

a298d3c687...05.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a298d3c6875b0feb8e46237e58770c05

  • Size

    853KB

  • Sample

    240224-yf249acg78

  • MD5

    a298d3c6875b0feb8e46237e58770c05

  • SHA1

    313c0dc74092ecaff11886bd6a46180b060101bc

  • SHA256

    11e4ec701aa7a97b97d299575dd92097d3ee52b5851afa6588f4e1220785b18d

  • SHA512

    cbaaf8aa8d7607856724d573818b01e8e597e3c0891929163b845d6a8bbcf8afaea1287fbf52b6df98984c3681d31611e945ec9463e4cf3cc450cae00a3bba86

  • SSDEEP

    12288:Ts98A+JZQQvMWFy2r0bDn5CX9yN1EO3/l3jZxfPgSWUiG9OelJ7y5g:498AiRr0bj5CX9ihl3jZtwUiCvJuu

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.0.17:1604

Mutex

DC_MUTEX-VKLVSXN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    HZ0miCZbzc76

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    System32dll

Targets

    • Target

      a298d3c6875b0feb8e46237e58770c05

    • Size

      853KB

    • MD5

      a298d3c6875b0feb8e46237e58770c05

    • SHA1

      313c0dc74092ecaff11886bd6a46180b060101bc

    • SHA256

      11e4ec701aa7a97b97d299575dd92097d3ee52b5851afa6588f4e1220785b18d

    • SHA512

      cbaaf8aa8d7607856724d573818b01e8e597e3c0891929163b845d6a8bbcf8afaea1287fbf52b6df98984c3681d31611e945ec9463e4cf3cc450cae00a3bba86

    • SSDEEP

      12288:Ts98A+JZQQvMWFy2r0bDn5CX9yN1EO3/l3jZxfPgSWUiG9OelJ7y5g:498AiRr0bj5CX9ihl3jZtwUiCvJuu

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • Deletes itself

    • 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

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks