Overview

overview

10

Static

static

10

JaffaCakes...aa.exe

windows7-x64

10

JaffaCakes...aa.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 17:45

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General

  • Target

    JaffaCakes118_6e5e0e02814693528ce44ad6cafa2faa.exe

  • Size

    636KB

  • MD5

    6e5e0e02814693528ce44ad6cafa2faa

  • SHA1

    65f961c23359930e1bd2817e7b5e857639731342

  • SHA256

    88bd9986eb228219871454f408a410142dcc5c678d4a0dbd680fba43653b9e76

  • SHA512

    8c1bdcd0ee4a8bbc211af302dab36e38a453cc2a58afa6085a601bb100285c5713ef3869ca1e5547696800c75d873d8099b5378b1509c6f5d105ef0d696ae04c

  • SSDEEP

    12288:/pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/q:xwAcu99lPzvxP+Bsz2XjWTRMQckkIXnS

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
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e5e0e02814693528ce44ad6cafa2faa.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e5e0e02814693528ce44ad6cafa2faa.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2768
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Checks BIOS information in registry
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2656
    • C:\Windows\SysWOW64\ping.exe
      ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e5e0e02814693528ce44ad6cafa2faa.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Runs ping.exe
      PID:2648

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

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

3
T1012

Remote System Discovery

1
T1018

System Information Discovery

3
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

  • memory/2656-19-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-16-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-13-0x0000000000160000-0x0000000000161000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2656-11-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-14-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-8-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2656-15-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-4-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-21-0x0000000000160000-0x0000000000161000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2656-12-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-18-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-20-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-9-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2656-17-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download

  • memory/2768-0-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2768-10-0x0000000000400000-0x00000000004B0000-memory.dmp

    Filesize

    704KB

    Download