Overview

overview

10

Static

static

3

218189c3a9...fN.exe

windows7-x64

10

218189c3a9...fN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    218189c3a94be13dc3fc46ce0583159aa4e4f57f136b3283435d70890e2dacefN.exe

  • Size

    966KB

  • Sample

    241219-advemaxqdw

  • MD5

    6c3c1088500350d9ff8c0869177ef5f0

  • SHA1

    3da4fdd97fe1264bf1da9c14b24abdad3bc741ce

  • SHA256

    218189c3a94be13dc3fc46ce0583159aa4e4f57f136b3283435d70890e2dacef

  • SHA512

    52425e86bc82802c858a5ae954aeafb47f4f6dafbcf8c5aecc40ce560007de090a02a8ca5a83dfbaca396428f852022d07bed08419183a0a9a62c1d30e5b16dd

  • SSDEEP

    12288:N3TD4DnRfwKl+znaNpofSsa9Pi+W9iXqpea3wJWIfBT3PGUE0/DrRrPGVz:FTQuKl+zsUC6J9i+3wJRT3PI0/xGx

Score
10/10
darkcometguest16discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

74.65.183.83:1604

74.65.183.83:25565

74.65.183.83:1122

74.65.183.83:100
Mutex

DC_MUTEX-XH87550

Attributes
  • InstallPath

    WindowsUpdate.exe

  • gencode

    MwBxQSYoXbQb

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    WindoesUpdate.dll

Targets

    • Target

      218189c3a94be13dc3fc46ce0583159aa4e4f57f136b3283435d70890e2dacefN.exe

    • Size

      966KB

    • MD5

      6c3c1088500350d9ff8c0869177ef5f0

    • SHA1

      3da4fdd97fe1264bf1da9c14b24abdad3bc741ce

    • SHA256

      218189c3a94be13dc3fc46ce0583159aa4e4f57f136b3283435d70890e2dacef

    • SHA512

      52425e86bc82802c858a5ae954aeafb47f4f6dafbcf8c5aecc40ce560007de090a02a8ca5a83dfbaca396428f852022d07bed08419183a0a9a62c1d30e5b16dd

    • SSDEEP

      12288:N3TD4DnRfwKl+znaNpofSsa9Pi+W9iXqpea3wJWIfBT3PGUE0/DrRrPGVz:FTQuKl+zsUC6J9i+3wJRT3PI0/xGx

    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.

    • 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

7
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