Overview

overview

10

Static

static

10

jaffacakes...sk.exe

windows10-2004-x64

10

jaffacakes...sk.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    jaffacakes118_Trojan-Spy.Win32.Delf.aask.4cfe8a8202475e2222b1c4576c719ef0
  • Size 247KB
  • Sample261012-kpetescw2r
  • SHA256 7e392aa340690cdb8c0473ab7ce0255cda6645e446cd08300468b184905f34ad
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
darkcomet4436defense_evasiondiscoveryexecutionpersistencerattrojanupx

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • 4436

C2

  • flas34.zapto.org:20

Mutex

  • DC_MUTEX-KYN0K7G

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    g2rMcm*XboVg

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Extracted

Family

  • darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target
      jaffacakes118_Trojan-Spy.Win32.Delf.aask.4cfe8a8202475e2222b1c4576c719ef0
    • Size 247KB
    • SHA256 7e392aa340690cdb8c0473ab7ce0255cda6645e446cd08300468b184905f34ad
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    4436defense_evasiondiscoveryexecutiondarkcometpersistencerattrojanupx

    • Family: Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

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