Overview

overview

10

Static

static

10

001d1b9ef0...86.exe

windows7-x64

10

001d1b9ef0...86.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86

  • Size

    975KB

  • Sample

    240315-vk48mafg73

  • MD5

    af7484c40877c3d74d58100509797f71

  • SHA1

    70cd03800362f1b35dc5260642ebf7d2159f18b8

  • SHA256

    001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86

  • SHA512

    b964f8277222df462ffd60b321ce856bdc4956234171bd8ea57dff4adfa02a07d0101e52eb5e5db5684a5b3f56b6ec67cadb10db9fb87b8d51affe8cba9220e1

  • SSDEEP

    12288:W9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hlx3st:yZ1xuVVjfFoynPaVBUR8f+kN10EBDBst

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

nakaga.ddns.net:1604

Mutex

DC_MUTEX-4A2S168

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    pkmsYsbr22Ni

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86

    • Size

      975KB

    • MD5

      af7484c40877c3d74d58100509797f71

    • SHA1

      70cd03800362f1b35dc5260642ebf7d2159f18b8

    • SHA256

      001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86

    • SHA512

      b964f8277222df462ffd60b321ce856bdc4956234171bd8ea57dff4adfa02a07d0101e52eb5e5db5684a5b3f56b6ec67cadb10db9fb87b8d51affe8cba9220e1

    • SSDEEP

      12288:W9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hlx3st:yZ1xuVVjfFoynPaVBUR8f+kN10EBDBst

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Modify Registry

7
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks