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Overview

overview

10

Static

static

10

JaffaCakes...4e.exe

windows7-x64

10

JaffaCakes...4e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 13:01

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General

  • Target

    JaffaCakes118_654832dab3d482e4aa043a5bcafada4e.exe

  • Size

    649KB

  • MD5

    654832dab3d482e4aa043a5bcafada4e

  • SHA1

    af18a78660f1cc334970bc33ea8ce84447b39cc5

  • SHA256

    112e5fc73af9e2eb1e289e7c4db5914a5de5a4cd1efb87e57c7df8f1c8fe6bd7

  • SHA512

    a93921c84c774f9a473e9ceb0a3255c24a50606b17c6ffab89a3cd3ee3082b2e172e09ed2972d268b99344febc0b80b285ac1afae82d8b92e4c311740e681479

  • SSDEEP

    12288:g6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfh6:lAmBpVKHu0Mu9Xo20VGLVP56

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

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
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 2 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • 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 2 IoCs
    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 8 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
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_654832dab3d482e4aa043a5bcafada4e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_654832dab3d482e4aa043a5bcafada4e.exe"
    1⤵
    • Modifies WinLogon for persistence
    • 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:2408
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_654832dab3d482e4aa043a5bcafada4e.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_654832dab3d482e4aa043a5bcafada4e.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1020
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1996
    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windupdt\winupdate.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windupdt\winupdate.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:4696
    • 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_654832dab3d482e4aa043a5bcafada4e.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:936
      • 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:116

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

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

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

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windupdt\winupdate.exe
    Filesize

    649KB

    MD5

    654832dab3d482e4aa043a5bcafada4e

    SHA1

    af18a78660f1cc334970bc33ea8ce84447b39cc5

    SHA256

    112e5fc73af9e2eb1e289e7c4db5914a5de5a4cd1efb87e57c7df8f1c8fe6bd7

    SHA512

    a93921c84c774f9a473e9ceb0a3255c24a50606b17c6ffab89a3cd3ee3082b2e172e09ed2972d268b99344febc0b80b285ac1afae82d8b92e4c311740e681479

    Download Submit

  • memory/2408-36-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/2408-0-0x0000000000690000-0x0000000000691000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4696-39-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-37-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-38-0x00000000022B0000-0x00000000022B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4696-35-0x00000000022B0000-0x00000000022B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4696-40-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-41-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-44-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-45-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-48-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download

  • memory/4696-49-0x0000000000400000-0x00000000004B4000-memory.dmp

    Filesize

    720KB

    Download