Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    29-04-2024 08:37

General

  • Target

    073fa3c9d4e14a7480c4190759d799e3_JaffaCakes118.dll

  • Size

    220KB

  • MD5

    073fa3c9d4e14a7480c4190759d799e3

  • SHA1

    d842b8f4df7f1d9e251c157d62f2b78913c97d1c

  • SHA256

    425daabae56f39d35a83aa918d36c4f8e9ff107f828246e7775cc5ca5bdcb531

  • SHA512

    6ca4f940c2ec30d0a46e6302eff2577b89944ded2ff0176169dc55dfbbec9f22ed286bb9e67fb655b18ff4cd17ef314ee622befafa737c6ce16e4cbd929ebe14

  • SSDEEP

    3072:4xWEAYnOYWvZVBNG8KxuZ7jghwiz0d/YHYKr0d8YLiVQNovG613ua39Yip9v4fq4:4xWXmOYWvXUighwJabARE4oObsis

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies registry class 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\073fa3c9d4e14a7480c4190759d799e3_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\073fa3c9d4e14a7480c4190759d799e3_JaffaCakes118.dll
      2⤵
      • Sets DLL path for service in the registry
      • Sets service image path in registry
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2336
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\073fa3c9d4e14a7480c4190759d799e3_JaffaCakes118.dll",DllMain -
        3⤵
        • Checks BIOS information in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2904
      • C:\Windows\SysWOW64\at.exe
        C:\Windows\system32\at.exe 11:5:00 /every:Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\073fa3c9d4e14a7480c4190759d799e3_JaffaCakes118.dll",DllMain -
        3⤵
          PID:1836
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2656

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2336-6-0x00000000024F0000-0x0000000002600000-memory.dmp

      Filesize

      1.1MB

    • memory/2336-12-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2904-11-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-14-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-15-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-16-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-17-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-18-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-20-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB

    • memory/2904-22-0x00000000001E0000-0x000000000021D000-memory.dmp

      Filesize

      244KB