Overview

overview

10

Static

static

3

2d8d55b1a2...8N.exe

windows7-x64

10

2d8d55b1a2...8N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2d8d55b1a2040a041c217333c1fff62f927bf29b3049963a815e29934f3f8418N.exe

  • Size

    911KB

  • Sample

    241202-jkm4kawkfy

  • MD5

    c6124a942c55b07895302856e06a9d90

  • SHA1

    792dcfe853839096cd815020cc084c00efea3eef

  • SHA256

    2d8d55b1a2040a041c217333c1fff62f927bf29b3049963a815e29934f3f8418

  • SHA512

    a79dee40098c9293de69fdf8564231a1d8cef29e0cb85b7b182e9ae4c5746467c660c6eba7395b04497b7839e6cfd66874697bfb532f479c199e08ffbbf62c1a

  • SSDEEP

    12288:GJd7xDyNZHN32RDRua9FZzrGHQTMDPnA46X3/aeSGxF10mhXWty7Xy5mQmkR/zEC:6dtuNtN32rRLZqQyp4HSGxZhXWO5C

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

      2d8d55b1a2040a041c217333c1fff62f927bf29b3049963a815e29934f3f8418N.exe

    • Size

      911KB

    • MD5

      c6124a942c55b07895302856e06a9d90

    • SHA1

      792dcfe853839096cd815020cc084c00efea3eef

    • SHA256

      2d8d55b1a2040a041c217333c1fff62f927bf29b3049963a815e29934f3f8418

    • SHA512

      a79dee40098c9293de69fdf8564231a1d8cef29e0cb85b7b182e9ae4c5746467c660c6eba7395b04497b7839e6cfd66874697bfb532f479c199e08ffbbf62c1a

    • SSDEEP

      12288:GJd7xDyNZHN32RDRua9FZzrGHQTMDPnA46X3/aeSGxF10mhXWty7Xy5mQmkR/zEC:6dtuNtN32rRLZqQyp4HSGxZhXWO5C

    Score
    10/10
    darkcometguest16discoveryevasionpersistencerattrojan

    • 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

    • Loads dropped DLL

    • 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