General

  • Target

    RAT2.exe

  • Size

    758KB

  • Sample

    240221-srpemshg7s

  • MD5

    21d196003c2ebe1318a386a3f1b96bbc

  • SHA1

    83ce95a86173ec0f6a708ee4cfd40260c5a624e7

  • SHA256

    b7de3304bb713d3da34c1d057e8dd48c7b5677e94d0f93ddee96089ff6445c25

  • SHA512

    f0947c77b3ce5b20d7df88ec8793f51bd7f9bc2a17f1c954e21c4bfe294213a38cae9657b4f892fd180cb7f43720d5c5cfaa1ff8923e10b456f23d66529202fa

  • SSDEEP

    12288:b9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hTvvNVRuH:VZ1xuVVjfFoynPaVBUR8f+kN10EBdvzG

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

nayef.ddns.net:1604

Mutex

DC_MUTEX-S42YJ4Y

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7CVEBPhuYSgK

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      RAT2.exe

    • Size

      758KB

    • MD5

      21d196003c2ebe1318a386a3f1b96bbc

    • SHA1

      83ce95a86173ec0f6a708ee4cfd40260c5a624e7

    • SHA256

      b7de3304bb713d3da34c1d057e8dd48c7b5677e94d0f93ddee96089ff6445c25

    • SHA512

      f0947c77b3ce5b20d7df88ec8793f51bd7f9bc2a17f1c954e21c4bfe294213a38cae9657b4f892fd180cb7f43720d5c5cfaa1ff8923e10b456f23d66529202fa

    • SSDEEP

      12288:b9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hTvvNVRuH:VZ1xuVVjfFoynPaVBUR8f+kN10EBdvzG

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Windows security bypass

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v13

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

4
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Tasks