Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 10:18

General

  • Target

    940798350b53c82ba0a4225cd1bf4a78_JaffaCakes118.exe

  • Size

    297KB

  • MD5

    940798350b53c82ba0a4225cd1bf4a78

  • SHA1

    8d3e2ae3f2c24fe832d3c5c782427358358113d8

  • SHA256

    288af07a3a1607a7d62df52463780b52d9e22c5027dc1c84989b51ca69987450

  • SHA512

    eb782a816cbf95529f43c93d635eb6124fb2aac66a6d469b993a1fdedb11d2e33fdf19717067cb76a31f3b727d946ff187ea7ced40095ce468848c362d646ee3

  • SSDEEP

    6144:RUxHyKatC79nYBLATMul7uj2WiSUCL0FcEHjBvR7bd/59mvhc:wz9Q5ulIi7CL0bDBvR7ZbKc

Malware Config

Signatures

  • Darkcomet

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

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

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 30 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\940798350b53c82ba0a4225cd1bf4a78_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\940798350b53c82ba0a4225cd1bf4a78_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\940798350b53c82ba0a4225cd1bf4a78_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\940798350b53c82ba0a4225cd1bf4a78_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2840
      • C:\Windupdt\BlackCrypterv1.1.exe
        "C:\Windupdt\BlackCrypterv1.1.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2668
        • C:\Windupdt\BlackCrypterv1.1.exe
          C:\Windupdt\BlackCrypterv1.1.exe
          4⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windupdt\BlackCrypterv1.1.exe

    Filesize

    297KB

    MD5

    940798350b53c82ba0a4225cd1bf4a78

    SHA1

    8d3e2ae3f2c24fe832d3c5c782427358358113d8

    SHA256

    288af07a3a1607a7d62df52463780b52d9e22c5027dc1c84989b51ca69987450

    SHA512

    eb782a816cbf95529f43c93d635eb6124fb2aac66a6d469b993a1fdedb11d2e33fdf19717067cb76a31f3b727d946ff187ea7ced40095ce468848c362d646ee3

  • memory/2684-4-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-3-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-5-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-7-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-6-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-9-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-8-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-2-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2684-29-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2840-12-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-18-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-21-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2840-16-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-44-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/3024-43-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-50-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-38-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-42-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-41-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-39-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-45-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-46-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-47-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-48-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-49-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-40-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-51-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-52-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-53-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-54-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-55-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-56-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-57-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-58-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3024-59-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB