Overview

overview

10

Static

static

10

vpn-sg.exe

windows7-x64

10

vpn-sg.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    vpn-sg.exe

  • Size

    756KB

  • Sample

    240403-nyl6msdb82

  • MD5

    46312df6c5ddc1f1c31051b7a6ccd792

  • SHA1

    0cd971f850841246463b7ebd6fafa8090b443bd4

  • SHA256

    d484e27c6aa0cfd3f3be41616901d5eaded7ab35632035a22f94538981f403a9

  • SHA512

    b227329c43de53577af461c93aa7af27932457ad21eaa13e4ff53a0a5c6e2c4f99e12e5d0e8767d58e105e8cf619dfde28075995f32653b3e5cf54fd1fbfac6f

  • SSDEEP

    12288:F9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h+:PZ1xuVVjfFoynPaVBUR8f+kN10EBI

Score
10/10
darkcometguest16persistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

45.61.152.61:1604

Mutex

DC_MUTEX-75H671P

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    rvR4QwZQ1qCt

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      vpn-sg.exe

    • Size

      756KB

    • MD5

      46312df6c5ddc1f1c31051b7a6ccd792

    • SHA1

      0cd971f850841246463b7ebd6fafa8090b443bd4

    • SHA256

      d484e27c6aa0cfd3f3be41616901d5eaded7ab35632035a22f94538981f403a9

    • SHA512

      b227329c43de53577af461c93aa7af27932457ad21eaa13e4ff53a0a5c6e2c4f99e12e5d0e8767d58e105e8cf619dfde28075995f32653b3e5cf54fd1fbfac6f

    • SSDEEP

      12288:F9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h+:PZ1xuVVjfFoynPaVBUR8f+kN10EBI

    Score
    10/10
    darkcometguest16persistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks