Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2024 16:19

General

  • Target

    7a6680b8a9741ffcc7f037c7a9e6916a_JaffaCakes118.exe

  • Size

    314KB

  • MD5

    7a6680b8a9741ffcc7f037c7a9e6916a

  • SHA1

    bcae503a33b6f04bcc7b28b3ff9862cb06a3b261

  • SHA256

    b57a973f786b9921403c29de2acf009103268627ff3ea22e0ff79f703a63c126

  • SHA512

    58b64d4d8fd4e6557b2f6e4d710e18c7b68ffd58f924b17746de79ddfdd20a2971f765912afdce25a5984e65cb42b5f8ee26b918dc10229917dff943c8aa894a

  • SSDEEP

    6144:Z33FXy0hrAIDkaDZ/H7otsOsMX+GqlrJN+sgbJygeVYe8n:phy0L/cZDX+fNXbVX8n

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 31 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).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a6680b8a9741ffcc7f037c7a9e6916a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7a6680b8a9741ffcc7f037c7a9e6916a_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Users\Admin\AppData\Local\Temp\7a6680b8a9741ffcc7f037c7a9e6916a_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • 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:4484
      • C:\system32\winlogon.exe
        "C:\system32\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3368
        • C:\system32\winlogon.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
          • Suspicious use of SetWindowsHookEx
          PID:3352
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3368 -s 488
          4⤵
          • Program crash
          PID:2384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 480
      2⤵
      • Program crash
      PID:4560
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2664 -ip 2664
    1⤵
      PID:2708
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3368 -ip 3368
      1⤵
        PID:4700

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\system32\winlogon.exe

        Filesize

        314KB

        MD5

        7a6680b8a9741ffcc7f037c7a9e6916a

        SHA1

        bcae503a33b6f04bcc7b28b3ff9862cb06a3b261

        SHA256

        b57a973f786b9921403c29de2acf009103268627ff3ea22e0ff79f703a63c126

        SHA512

        58b64d4d8fd4e6557b2f6e4d710e18c7b68ffd58f924b17746de79ddfdd20a2971f765912afdce25a5984e65cb42b5f8ee26b918dc10229917dff943c8aa894a

      • memory/3352-45-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-52-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-30-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-37-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-51-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-50-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-49-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-48-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-35-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-36-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-34-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-33-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-31-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-32-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-47-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-38-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-46-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-39-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-40-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-41-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-42-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-43-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/3352-44-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-4-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-5-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-6-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-21-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-3-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-9-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-8-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB

      • memory/4484-7-0x0000000000400000-0x00000000004C5000-memory.dmp

        Filesize

        788KB