Overview

overview

10

Static

static

10

2c4840f01b...25.exe

windows7-x64

10

2c4840f01b...25.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2c4840f01b7d07efa6d4025b80d906e0b25f02777e9951823d9bc3ac70851e25

  • Size

    658KB

  • Sample

    221125-nvjw4shd9x

  • MD5

    376eaca4f64b4973be63aee25d04120c

  • SHA1

    02f1a8f347233e30f3a7672e3d1f72e67686606c

  • SHA256

    2c4840f01b7d07efa6d4025b80d906e0b25f02777e9951823d9bc3ac70851e25

  • SHA512

    03885ebec5c792bab45e2f7a480cbf345d9a2b62197dc4caabfba7dd96965bffc4de0c06ae07924d4e41711bae47ab4a489c35af118bcc944badf7b7f3a1349e

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hO:KZ1xuVVjfFoynPaVBUR8f+kN10EBE

Score
10/10
darkcomethfevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

stanleymtan2014.no-ip.org:1604

Mutex

DC_MUTEX-WWDRR9E

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    dgSXixozTpfd

  • install

    true

  • offline_keylogger

    false

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      2c4840f01b7d07efa6d4025b80d906e0b25f02777e9951823d9bc3ac70851e25

    • Size

      658KB

    • MD5

      376eaca4f64b4973be63aee25d04120c

    • SHA1

      02f1a8f347233e30f3a7672e3d1f72e67686606c

    • SHA256

      2c4840f01b7d07efa6d4025b80d906e0b25f02777e9951823d9bc3ac70851e25

    • SHA512

      03885ebec5c792bab45e2f7a480cbf345d9a2b62197dc4caabfba7dd96965bffc4de0c06ae07924d4e41711bae47ab4a489c35af118bcc944badf7b7f3a1349e

    • SSDEEP

      12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hO:KZ1xuVVjfFoynPaVBUR8f+kN10EBE

    Score
    10/10
    darkcomethfevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks