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Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 06:45

General

  • Target

    eac90624b777b28d1049dbb907d15a5f_JaffaCakes118.exe

  • Size

    2.9MB

  • MD5

    eac90624b777b28d1049dbb907d15a5f

  • SHA1

    1edfec839bd5dade13e637e37a4d9e434dcc6d62

  • SHA256

    4219e3fde43f1a64d937cf29a91cd2894986aea3dcaee98ec4fb2de9fabfd4e6

  • SHA512

    a04b731c7c23b794f3a2f4ed72dde9243c642548e6a82662833cfb7bcb9e5b208628babf1a7fba9448fb30fa67dde6a2393ebd6284858bd4f053ca9b44baa1cb

  • SSDEEP

    49152:tOenanS7qj2OfqfI6p6shtvT0JehzIybYdCPVvrYtCSV5dtKwjqUo6NXLlRR:2njj2OyAxsDLM8dDm5dPjjlRR

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 3 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 3 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Checks processor information in registry 2 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eac90624b777b28d1049dbb907d15a5f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eac90624b777b28d1049dbb907d15a5f_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
        PID:2712
      • C:\Windows\SysWOW64\Windupdt\winupdate.exe
        "C:\Windows\system32\Windupdt\winupdate.exe"
        2⤵
        • Modifies WinLogon for persistence
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Writes to the Master Boot Record (MBR)
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2652
        • C:\Windows\SysWOW64\explorer.exe
          "C:\Windows\SysWOW64\explorer.exe"
          3⤵
          • Checks BIOS information in registry
          • Identifies Wine through registry keys
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3032

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\Windupdt\winupdate.exe

      Filesize

      2.9MB

      MD5

      eac90624b777b28d1049dbb907d15a5f

      SHA1

      1edfec839bd5dade13e637e37a4d9e434dcc6d62

      SHA256

      4219e3fde43f1a64d937cf29a91cd2894986aea3dcaee98ec4fb2de9fabfd4e6

      SHA512

      a04b731c7c23b794f3a2f4ed72dde9243c642548e6a82662833cfb7bcb9e5b208628babf1a7fba9448fb30fa67dde6a2393ebd6284858bd4f053ca9b44baa1cb

    • memory/780-0-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-1-0x0000000000401000-0x000000000044C000-memory.dmp

      Filesize

      300KB

    • memory/780-2-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-3-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-5-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-6-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-16-0x0000000008040000-0x0000000008648000-memory.dmp

      Filesize

      6.0MB

    • memory/780-13-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/780-14-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/2652-17-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/2652-24-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-22-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3032-25-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-19-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-35-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-38-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-45-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-46-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-49-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-48-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-47-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-44-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-43-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-42-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-41-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-40-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-39-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-37-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-36-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-34-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-33-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-32-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-30-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-29-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-28-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-27-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-31-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-26-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-52-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-50-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-51-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-53-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-54-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-55-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-57-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-59-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-58-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-56-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB

    • memory/3032-60-0x0000000000400000-0x0000000000A08000-memory.dmp

      Filesize

      6.0MB