Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 16:54

General

  • Target
    4df721c62c770c4439b7cafb1013c58e_JaffaCakes118.exe
  • Size 404KB
  • Sample241016-vesmmsvaqj
  • SHA256 daf00e22a195c405285d299693b49928590c977fc64eca46a85f173f1d3e5e09
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Print Processors 1 TTPs 2 IoCs

    Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

  • Loads dropped DLL 3 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4df721c62c770c4439b7cafb1013c58e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4df721c62c770c4439b7cafb1013c58e_JaffaCakes118.exe"
    1⤵
    • Boot or Logon Autostart Execution: Print Processors
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7EBE.tmp
      2⤵
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      PID:3944

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        86C0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\86C0.tmp
        • Size 404KB
        • SHA256 e182f079073d463de24be2177e23cda17089b86a213b603cd5616472ffc11687
        • MD5 SHA1 SHA512 SSDEEP

        86A0.tmp

        • Path C:\Windows\System32\spool\prtprocs\x64\86A0.tmp
        • Size 344KB
        • SHA256 f1329000161c29f87626fe9982df64f72ddf8d9ea081f3958943686986c29bf2
        • MD5 SHA1 SHA512 SSDEEP

        memory/3024-1-0x0000000000400000-0x0000000000465000-memory.dmp

        memory/3024-3-0x0000000000640000-0x00000000006A6000-memory.dmp

        memory/3024-2-0x0000000000460000-0x0000000000470000-memory.dmp

        memory/3024-20-0x0000000000640000-0x00000000006A5000-memory.dmp

        memory/3024-28-0x0000000002890000-0x00000000028F7000-memory.dmp

        memory/3024-31-0x0000000000400000-0x0000000000465000-memory.dmp

        memory/3024-32-0x0000000000640000-0x00000000006A6000-memory.dmp

        memory/3944-25-0x0000000000EC0000-0x0000000000F12000-memory.dmp