Overview

overview

10

Static

static

10

JaffaCakes...f0.exe

windows7-x64

10

JaffaCakes...f0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-02-2025 22:13

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General

  • Target

    JaffaCakes118_0e7c3885267a33b9d70e83b42ee4eef0.exe

  • Size

    746KB

  • MD5

    0e7c3885267a33b9d70e83b42ee4eef0

  • SHA1

    f3ef2dcdfe7c1d48eebfc6908b8f8c6d1830583f

  • SHA256

    b305e234e13edd0c620ac16b20773ad804b4ba442afcf60bf960a49626188fd3

  • SHA512

    806d0854ccc12ba3169eb3e7ab8b83630e5de9a87ac79edd39824c681be6e31210de4816ab4cc7143e03d5af7ccf553f54d07b48d19d2dbb2c10ee19a88a50f2

  • SSDEEP

    12288:S6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfhUsvv:XAmBpVKHu0Mu9Xo20VGLVP5vvv

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-TM0AWX1

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    qZwwH6xTpa$s

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    winupdater

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 security service 2 TTPs 1 IoCs
    defense_evasion
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 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 4 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e7c3885267a33b9d70e83b42ee4eef0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e7c3885267a33b9d70e83b42ee4eef0.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      2⤵
      • Modifies security service
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2928
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e7c3885267a33b9d70e83b42ee4eef0.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 5
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2828

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

Modify Registry

3
T1112

Credential Access

Discovery

Remote System Discovery

1
T1018

System Information Discovery

1
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

Replay Monitor

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Downloads

  • \Windupdt\winupdate.exe
    Filesize

    746KB

    MD5

    0e7c3885267a33b9d70e83b42ee4eef0

    SHA1

    f3ef2dcdfe7c1d48eebfc6908b8f8c6d1830583f

    SHA256

    b305e234e13edd0c620ac16b20773ad804b4ba442afcf60bf960a49626188fd3

    SHA512

    806d0854ccc12ba3169eb3e7ab8b83630e5de9a87ac79edd39824c681be6e31210de4816ab4cc7143e03d5af7ccf553f54d07b48d19d2dbb2c10ee19a88a50f2

    Download Submit

  • memory/2528-0-0x00000000002E0000-0x00000000002E1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2528-10-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/2928-14-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/2928-15-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download