Overview

overview

10

Static

static

3

c0e342ac96...83.exe

windows7-x64

3

c0e342ac96...83.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c0e342ac962f7922722645e8bc2315a7c37e13d8b1f1e76dbb4cf8ad9e64fa83.exe

  • Size

    911KB

  • Sample

    241201-zft93swldk

  • MD5

    4f166133072870ee10e716ce07dce7d7

  • SHA1

    a45d9d51f63d7169f61a8298c3c1a6360836ac15

  • SHA256

    c0e342ac962f7922722645e8bc2315a7c37e13d8b1f1e76dbb4cf8ad9e64fa83

  • SHA512

    e219c7af0b7d3fd28c0c67e7b255ee0ab581cafc110f7204577ca22e50cc3fb64d9dd528c7dcaa8e5cf7434c284b35c836dcf8c985540325a156aad6c5f8af10

  • SSDEEP

    12288:GJd7xDyNZHN32RDRua9FZzrGHQTMDPnA46X3/aeSGxF10mhXWty7Xy5mQmkR/zEm:6dtuNtN32rRLZqQyp4HSGxZhXWO5m

Score
10/10
darkcometguest16discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

efosa94949.no-ip.biz:1604

Mutex

DC_MUTEX-7SCGJWM

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    k0FWSrLTENGX

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      c0e342ac962f7922722645e8bc2315a7c37e13d8b1f1e76dbb4cf8ad9e64fa83.exe

    • Size

      911KB

    • MD5

      4f166133072870ee10e716ce07dce7d7

    • SHA1

      a45d9d51f63d7169f61a8298c3c1a6360836ac15

    • SHA256

      c0e342ac962f7922722645e8bc2315a7c37e13d8b1f1e76dbb4cf8ad9e64fa83

    • SHA512

      e219c7af0b7d3fd28c0c67e7b255ee0ab581cafc110f7204577ca22e50cc3fb64d9dd528c7dcaa8e5cf7434c284b35c836dcf8c985540325a156aad6c5f8af10

    • SSDEEP

      12288:GJd7xDyNZHN32RDRua9FZzrGHQTMDPnA46X3/aeSGxF10mhXWty7Xy5mQmkR/zEm:6dtuNtN32rRLZqQyp4HSGxZhXWO5m

    Score
    10/10
    discoverydarkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks