Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2024, 12:44

General

  • Target

    66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    66bf2bd6bcd6c3a39c5499a68a63e756

  • SHA1

    839c75ada4d42132b318e8485af1bef13f161f7a

  • SHA256

    05d8b7fd8054a5edda812894f1eab9d3fb91e18035851b1caed217a6bde18c41

  • SHA512

    ac894fa159a50a43b493c69bf397640d3356a8803f1edbf53aa95d256ebee3df21a02ef5767b1388ad3f5636b4b96f6e9a128b8906ee651b12640c8f01ed6739

  • SSDEEP

    24576:OSTr6jNMfUpY99HJnRigrOy4GSJcH+ns4:V6jXm999RiqOyiJceb

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 4 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 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.

  • Windows security modification 2 TTPs 1 IoCs
  • Checks for any installed AV software in registry 1 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • 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 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies firewall policy service
      • UAC bypass
      • Windows security bypass
      • Checks computer location settings
      • Windows security modification
      • Checks for any installed AV software in registry
      • Checks whether UAC is enabled
      • Maps connected drives based on registry
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:30688
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\System32\net.exe" stop sharedaccess
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:30060
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop sharedaccess
          4⤵
          • System Location Discovery: System Language Discovery
          PID:30220
      • C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\66bf2bd6bcd6c3a39c5499a68a63e756_JaffaCakes118.exe
        3⤵
        • Checks BIOS information in registry
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:5348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5348-13457-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13463-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13472-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13471-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13470-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13446-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13445-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13447-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13448-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13449-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13450-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13452-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13451-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13469-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13468-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13467-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13465-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13460-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13461-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13462-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13458-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13464-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13459-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/5348-13466-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/30688-13115-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/30688-13118-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/30688-13455-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/30688-13120-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/30688-13122-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/30688-13119-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB