Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 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
    • Checks computer location settings
    • 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:2224
    • 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:2376
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\Install\Winup.exe

    Filesize

    540KB

    MD5

    79f990b51a93bcea447361c0ff124fa5

    SHA1

    0b0f738448b585e95876a1db1a5ccd349bb8f394

    SHA256

    1fd2795be467787899008bd222d7c4d336701f294461e4c6c7a28059148b0a81

    SHA512

    a1f78ad9c0e89c07d02bea6664d04803a051c1aaae3a4658c1525946cf3e190e943b25681dfab3897b643ea65896a462ac66d254cbc05a2525d1092b15164e8a

  • memory/2224-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

    Filesize

    4KB

  • memory/2224-1-0x0000000000C80000-0x0000000000CCE000-memory.dmp

    Filesize

    312KB

  • memory/2224-2-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2224-7-0x0000000076F60000-0x0000000076F61000-memory.dmp

    Filesize

    4KB

  • memory/2224-6-0x0000000002510000-0x0000000002520000-memory.dmp

    Filesize

    64KB

  • memory/2224-5-0x0000000002510000-0x0000000002520000-memory.dmp

    Filesize

    64KB

  • memory/2224-4-0x0000000077DC2000-0x0000000077DC3000-memory.dmp

    Filesize

    4KB

  • memory/2224-3-0x0000000002360000-0x0000000002370000-memory.dmp

    Filesize

    64KB

  • memory/2224-8-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-9-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-10-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-11-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-12-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-15-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2224-25-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2224-27-0x0000000000C80000-0x0000000000CCE000-memory.dmp

    Filesize

    312KB

  • memory/2224-28-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-29-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-30-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-34-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-36-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-33-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-32-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-31-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-38-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-41-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-40-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-39-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-37-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-42-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-45-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-47-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-46-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-44-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-43-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-48-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-49-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-50-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-56-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-57-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-58-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-66-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-65-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-64-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-63-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-62-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-61-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-60-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-59-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-55-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-54-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-53-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-52-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-51-0x0000000076F40000-0x0000000077030000-memory.dmp

    Filesize

    960KB

  • memory/2376-67-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-68-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-69-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-70-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-71-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-72-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-73-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-74-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-75-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-76-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-77-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2376-78-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/4048-35-0x0000000000750000-0x0000000000751000-memory.dmp

    Filesize

    4KB