Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30-07-2024 20:47

General

  • Target

    79f990b51a93bcea447361c0ff124fa5_JaffaCakes118.exe

  • Size

    540KB

  • MD5

    79f990b51a93bcea447361c0ff124fa5

  • SHA1

    0b0f738448b585e95876a1db1a5ccd349bb8f394

  • SHA256

    1fd2795be467787899008bd222d7c4d336701f294461e4c6c7a28059148b0a81

  • SHA512

    a1f78ad9c0e89c07d02bea6664d04803a051c1aaae3a4658c1525946cf3e190e943b25681dfab3897b643ea65896a462ac66d254cbc05a2525d1092b15164e8a

  • SSDEEP

    12288:ke0upxXUG/EwhiALlal/1VOqIn9fy/afPdTL67P/wcpG5txe+bE:zzxEG/Eclw9s59q/sZu7P/waGrxe+I

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

winupdt.sytes.net:5500

Mutex

DC_MUTEX-FYC4NVU

Attributes
  • InstallPath

    Install\Winup.exe

  • gencode

    xlw5yo0FAZSj

  • install

    true

  • offline_keylogger

    true

  • password

    111

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Molebox Virtualization software 1 IoCs

    Detects file using Molebox Virtualization software.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79f990b51a93bcea447361c0ff124fa5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\79f990b51a93bcea447361c0ff124fa5_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\Install\Winup.exe
      "C:\Windows\Install\Winup.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\Install\Winup.exe

    Filesize

    540KB

    MD5

    79f990b51a93bcea447361c0ff124fa5

    SHA1

    0b0f738448b585e95876a1db1a5ccd349bb8f394

    SHA256

    1fd2795be467787899008bd222d7c4d336701f294461e4c6c7a28059148b0a81

    SHA512

    a1f78ad9c0e89c07d02bea6664d04803a051c1aaae3a4658c1525946cf3e190e943b25681dfab3897b643ea65896a462ac66d254cbc05a2525d1092b15164e8a

  • memory/2220-1-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2220-5-0x0000000077970000-0x0000000077971000-memory.dmp

    Filesize

    4KB

  • memory/2220-4-0x00000000020F0000-0x0000000002100000-memory.dmp

    Filesize

    64KB

  • memory/2220-3-0x0000000001EC0000-0x0000000001ED0000-memory.dmp

    Filesize

    64KB

  • memory/2220-2-0x0000000000310000-0x000000000035E000-memory.dmp

    Filesize

    312KB

  • memory/2220-26-0x0000000000310000-0x000000000035E000-memory.dmp

    Filesize

    312KB

  • memory/2220-7-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2220-6-0x00000000760F1000-0x00000000760F2000-memory.dmp

    Filesize

    4KB

  • memory/2220-0-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2220-22-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2220-24-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2760-33-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2760-71-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/2828-17-0x00000000001B0000-0x00000000001B4000-memory.dmp

    Filesize

    16KB

  • memory/2828-76-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-30-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-29-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-28-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-27-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-32-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-25-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-19-0x00000000001B0000-0x00000000001B4000-memory.dmp

    Filesize

    16KB

  • memory/2828-72-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-73-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-74-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-75-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-31-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-77-0x00000000760E0000-0x00000000761F0000-memory.dmp

    Filesize

    1.1MB

  • memory/2828-78-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-79-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-80-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-81-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-82-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-83-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-84-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-85-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-86-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-87-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-88-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2828-89-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB