Overview

overview

10

Static

static

10

646df16879...18.exe

windows7-x64

10

646df16879...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 19:07

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General

  • Target

    646df1687944b72c9b88ae9b867d2609_JaffaCakes118.exe

  • Size

    807KB

  • MD5

    646df1687944b72c9b88ae9b867d2609

  • SHA1

    69d02cea4e83bcae2ca82a46da826b532c48524e

  • SHA256

    bce176ac6933b54d90e4d933e8501d240907a2b50832a1bd10777c45d668d82a

  • SHA512

    a6a72990eeacca483eb3972d10113be6697ea0b296d71e6827bac92af0e59e07ac54d2f420e4a1acbbd77091bf4c316cbee2b418ccc23c592cc2ac93cad1f352

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hjy1T2GR3:KZ1xuVVjfFoynPaVBUR8f+kN10EBByj3

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

tarikozturk1287.duckdns.org:1604

Mutex

DC_MUTEX-1X71TEG

Attributes
  • InstallPath

    svchost\svchost.exe

  • gencode

    3Q1BriCVqxr1

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 2 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
  • Sets file to hidden 1 TTPs 1 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 1 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\646df1687944b72c9b88ae9b867d2609_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\646df1687944b72c9b88ae9b867d2609_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1168
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:1540
    • C:\Windows\SysWOW64\svchost\svchost.exe
      "C:\Windows\system32\svchost\svchost.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:852

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Modify Registry

7
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\svchost\svchost.exe
    Filesize

    807KB

    MD5

    646df1687944b72c9b88ae9b867d2609

    SHA1

    69d02cea4e83bcae2ca82a46da826b532c48524e

    SHA256

    bce176ac6933b54d90e4d933e8501d240907a2b50832a1bd10777c45d668d82a

    SHA512

    a6a72990eeacca483eb3972d10113be6697ea0b296d71e6827bac92af0e59e07ac54d2f420e4a1acbbd77091bf4c316cbee2b418ccc23c592cc2ac93cad1f352

    Download Submit
  • memory/852-13-0x00000000025D0000-0x00000000025D1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/852-15-0x0000000000400000-0x00000000004D7000-memory.dmp
    Filesize

    860KB

    Download
  • memory/852-17-0x0000000000400000-0x00000000004D7000-memory.dmp
    Filesize

    860KB

    Download
  • memory/1168-0-0x00000000005C0000-0x00000000005C1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1168-14-0x0000000000400000-0x00000000004D7000-memory.dmp
    Filesize

    860KB

    Download