Overview

overview

10

Static

static

10

JaffaCakes...f5.exe

windows7-x64

10

JaffaCakes...f5.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2025, 09:44

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General

  • Target

    JaffaCakes118_383c7631dffe21f68470bb2b119eb5f5.exe

  • Size

    747KB

  • MD5

    383c7631dffe21f68470bb2b119eb5f5

  • SHA1

    498c4206435c79bcb0fb7bb8250d38d0e0b2c7c6

  • SHA256

    8a5ae549f49aa6ccdf799dffac687f313078d064d65cd650aa92963f90c75afc

  • SHA512

    bfa80054db09915817599fc3d0cf1f68f096da5897478326e691d7f6596ff9c51d7f90736f8fead26bcf70d9e855d84e5fc515f8595a28684f03be194799f8be

  • SSDEEP

    12288:36A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfhkPgx:qAmBpVKHu0Mu9Xo20VGLVP5N

Score
10/10
darkcometnoobydefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

nooby

C2

twidz.sytes.net:1604

Mutex

DC_MUTEX-70JEKY8

Attributes
  • InstallPath

    drivers\etc\hosts.exe

  • gencode

    2*9Gqb/dxoL3

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    hosts

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
  • Modifies security service 2 TTPs 1 IoCs
    defense_evasion
  • Windows security bypass 2 TTPs 2 IoCs
    defense_evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    defense_evasion
  • Disables Task Manager via registry modification
    defense_evasion
  • Drops file in Drivers directory 3 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    defense_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
    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 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
    defense_evasion
  • Views/modifies file attributes 1 TTPs 2 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_383c7631dffe21f68470bb2b119eb5f5.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_383c7631dffe21f68470bb2b119eb5f5.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:1776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_383c7631dffe21f68470bb2b119eb5f5.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_383c7631dffe21f68470bb2b119eb5f5.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3740
    • 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:2676
      • 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:4240
    • C:\Windows\system32\drivers\etc\hosts.exe
      "C:\Windows\system32\drivers\etc\hosts.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:3164
    • 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_383c7631dffe21f68470bb2b119eb5f5.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4420
      • 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:4532

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:\Windows\System32\drivers\etc\hosts.exe
    Filesize

    747KB

    MD5

    383c7631dffe21f68470bb2b119eb5f5

    SHA1

    498c4206435c79bcb0fb7bb8250d38d0e0b2c7c6

    SHA256

    8a5ae549f49aa6ccdf799dffac687f313078d064d65cd650aa92963f90c75afc

    SHA512

    bfa80054db09915817599fc3d0cf1f68f096da5897478326e691d7f6596ff9c51d7f90736f8fead26bcf70d9e855d84e5fc515f8595a28684f03be194799f8be

    Download Submit

  • memory/1776-0-0x0000000002280000-0x0000000002281000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1776-36-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-42-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-44-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-38-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-40-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-41-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-37-0x00000000022C0000-0x00000000022C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3164-43-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-39-0x00000000022C0000-0x00000000022C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3164-45-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-46-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-47-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-48-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-49-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-50-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-51-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download

  • memory/3164-52-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

    Download