Overview

overview

10

Static

static

10

2fe6a7ae63...5d.exe

windows7-x64

10

2fe6a7ae63...5d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2fe6a7ae63c878bd84d7b829349b309e7c84194ddbb6a779816f5b84cd8ad45d.exe

  • Size

    658KB

  • Sample

    250214-c639cayrar

  • MD5

    c5ff9d96bc7bc00c2e7c3d656598f118

  • SHA1

    5875b392f6ab097134a8f85e973baecd09439f59

  • SHA256

    2fe6a7ae63c878bd84d7b829349b309e7c84194ddbb6a779816f5b84cd8ad45d

  • SHA512

    757c6409eefe2d346f9016f53fd3e4b092d947f08dec9eb4861a6f3ef6b6f187bfda9160fb3e87fc2f6912841a426c206a162c72fdfdbca0c2805cd88525ac92

  • SSDEEP

    12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hk:qZ1xuVVjfFoynPaVBUR8f+kN10EBS

Score
10/10
darkcometautredefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

AUTRE

C2

voltazur.ddns.net:1604

Mutex

DC_MUTEX-0F1C40C

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    djHf5i8YgrmK

  • install

    true

  • offline_keylogger

    false

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target

      2fe6a7ae63c878bd84d7b829349b309e7c84194ddbb6a779816f5b84cd8ad45d.exe

    • Size

      658KB

    • MD5

      c5ff9d96bc7bc00c2e7c3d656598f118

    • SHA1

      5875b392f6ab097134a8f85e973baecd09439f59

    • SHA256

      2fe6a7ae63c878bd84d7b829349b309e7c84194ddbb6a779816f5b84cd8ad45d

    • SHA512

      757c6409eefe2d346f9016f53fd3e4b092d947f08dec9eb4861a6f3ef6b6f187bfda9160fb3e87fc2f6912841a426c206a162c72fdfdbca0c2805cd88525ac92

    • SSDEEP

      12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hk:qZ1xuVVjfFoynPaVBUR8f+kN10EBS

    Score
    10/10
    darkcometautredefense_evasiondiscoverypersistencerattrojan

    • 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

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_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

      defense_evasiontrojan

    • Adds Run key to start application

      persistence
    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

1
T1543

Windows Service

1
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

1
T1543

Windows Service

1
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

5
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks