Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2024 00:33

General

  • Target

    f4aa4319e9665a8e361b1698ed0bd7d5_JaffaCakes118.exe

  • Size

    848KB

  • MD5

    f4aa4319e9665a8e361b1698ed0bd7d5

  • SHA1

    9f0ba090549177dca85ec622459464b37c5505e1

  • SHA256

    5663bb62c67c6453f5dc4f0e395faa9219f6397efcf86c0f49d48114825c3488

  • SHA512

    be6421f468b4ecdf8cf3afcb123daf7c80186b058e3526ba34995afab1b9af9fbbc4fef52684e0efc1d88e67fbe7348d9e9f89d28c55d485f0fe5dce37aaa3f6

  • SSDEEP

    12288:va2jkl3B7hfDZcQ+vLVeJL1eqdIgP5tG4N5/aasLFfvFRyCQGib8tQQ8lOJ3ebVn:vaEkVZyVk8Y5N5iZvFRAAalOJ3Sjx5

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4aa4319e9665a8e361b1698ed0bd7d5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f4aa4319e9665a8e361b1698ed0bd7d5_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Adds Run key to start application
      PID:2624
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
        PID:2644

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\PCGWIN32.LI5

      Filesize

      2KB

      MD5

      8d697f5103b09aec16125c8645e4fc7c

      SHA1

      ad127e66569177f61c42ac2906d96263f6a0fbc9

      SHA256

      3a790dc40b423ecbeb70f10cb7f432d56ef3865071e4af2f898bde4f7ec44a5f

      SHA512

      b00a2055684d858a7a1f839b23332f8595b8195510946d6a7c61c55b170bd3a83b789700659160d3757b05c62c6f23af5b74813498fa39ac308121070399bd79

    • C:\Windupdt\winupdate.exe

      Filesize

      848KB

      MD5

      f4aa4319e9665a8e361b1698ed0bd7d5

      SHA1

      9f0ba090549177dca85ec622459464b37c5505e1

      SHA256

      5663bb62c67c6453f5dc4f0e395faa9219f6397efcf86c0f49d48114825c3488

      SHA512

      be6421f468b4ecdf8cf3afcb123daf7c80186b058e3526ba34995afab1b9af9fbbc4fef52684e0efc1d88e67fbe7348d9e9f89d28c55d485f0fe5dce37aaa3f6

    • memory/2624-43-0x00000000003C0000-0x00000000003C1000-memory.dmp

      Filesize

      4KB

    • memory/2624-14-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB

    • memory/2644-48-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2644-52-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2644-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2644-53-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2644-55-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2644-56-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2644-57-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2752-12-0x0000000000350000-0x0000000000351000-memory.dmp

      Filesize

      4KB

    • memory/2752-0-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB

    • memory/2752-54-0x0000000013140000-0x0000000013226000-memory.dmp

      Filesize

      920KB