Overview

overview

10

Static

static

10

JaffaCakes...23.exe

windows7-x64

10

JaffaCakes...23.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2025, 11:47

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General

  • Target

    JaffaCakes118_b6ab3d7bdb56f0c8c26d91eae185b923.exe

  • Size

    647KB

  • MD5

    b6ab3d7bdb56f0c8c26d91eae185b923

  • SHA1

    b74edc4ade72b208ee0272d29e36c6cffd296e2f

  • SHA256

    53acd5f520a5a12605e262e8ac057dc58652bb31adabe17e319e4638e73a51d2

  • SHA512

    cff68090a3277290b3f7666ce3114a2eece09fb1ae8555b08375c7bc38afc8b3f831974d4411c1b0150f2407d19cd4e908433ef080fa39ad4c9ee87a9a228564

  • SSDEEP

    12288:A8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORixR:5UKoN0bUxgGa/pfBHDb+y1HgZj

Score
10/10
darkcometguest2defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest2

C2

127.0.0.1:1604

Mutex

DC_MUTEX-6EMK09R

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    ff=YeNz#=NJr

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 3 TTPs 3 IoCs
    defense_evasion
  • Windows security bypass 2 TTPs 1 IoCs
    defense_evasiontrojan
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
    defense_evasiontrojan
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6ab3d7bdb56f0c8c26d91eae185b923.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b6ab3d7bdb56f0c8c26d91eae185b923.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3628
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3040

Network

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

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    Filesize

    647KB

    MD5

    b6ab3d7bdb56f0c8c26d91eae185b923

    SHA1

    b74edc4ade72b208ee0272d29e36c6cffd296e2f

    SHA256

    53acd5f520a5a12605e262e8ac057dc58652bb31adabe17e319e4638e73a51d2

    SHA512

    cff68090a3277290b3f7666ce3114a2eece09fb1ae8555b08375c7bc38afc8b3f831974d4411c1b0150f2407d19cd4e908433ef080fa39ad4c9ee87a9a228564

    Download Submit

  • memory/3040-63-0x0000000002160000-0x0000000002161000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3040-64-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3040-66-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3040-68-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3040-73-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3040-74-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3040-77-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download

  • memory/3628-0-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3628-62-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

    Download