Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-04-2024 22:41

General

  • Target

    efae2dc9c812edcd76426579e516c7d3_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    efae2dc9c812edcd76426579e516c7d3

  • SHA1

    df8acdef44d958bcec5fb64757a554cfa5bc5f14

  • SHA256

    03e15b7644a4692524bd1e5e41cb22921a5bec52191d390160b0d6de61940cdd

  • SHA512

    07bb99811d17b84ab5a11903f8623d8d84eb6e2063210630fcaa7d6fc3006317572846167e10c36f75b22ced12ac99f33f0911f87eff48fc4e7f5f2fbaf8f5ac

  • SSDEEP

    98304:vJwakG4fYrq1HJvpliCQHawbzBbGSlaUEI96kdQDanpqHrO3ndI3/lL/v7zVwwX/:vJwakG4fYrq1HJvpliCQHawbzBbGSlah

Malware Config

Signatures

  • Darkcomet

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

  • 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.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 19 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efae2dc9c812edcd76426579e516c7d3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\efae2dc9c812edcd76426579e516c7d3_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\dBPqZ.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
        3⤵
        • Adds Run key to start application
        PID:752
    • C:\Users\Admin\AppData\Roaming\mcsft.exe
      "C:\Users\Admin\AppData\Roaming\mcsft.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Users\Admin\AppData\Roaming\mcsft.exe
        C:\Users\Admin\AppData\Roaming\mcsft.exe
        3⤵
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\dBPqZ.txt

    Filesize

    135B

    MD5

    a5feca573884d76f559b996d45e8ad9a

    SHA1

    0e81a993f3af4e31d60653dc2513186f0495f1c8

    SHA256

    c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

    SHA512

    a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

  • C:\Users\Admin\AppData\Roaming\mcsft.txt

    Filesize

    3.8MB

    MD5

    1bb341e66a119c572c8e5ea24b2e5063

    SHA1

    29c93632c1d0fc753f34b82bcb8cb58ef3574228

    SHA256

    83c2a7e78fa7fa9fe1e17e4c6a46da423401f9e67f600a3ddf5d4bd8f3ec7699

    SHA512

    1efc71079ef8150271cd6a3cf3ed60c68074da2a1de923e77ac112ade22378a1757f1c6c57d8563f5f8e43ca3cbd877f6d74a45473b22d42d9310d7309e7ff9d

  • memory/3532-36-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/3552-29-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/3552-0-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/4016-39-0x00000000007C0000-0x00000000007C1000-memory.dmp

    Filesize

    4KB

  • memory/4016-42-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-34-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-37-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-38-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-31-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-40-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-35-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-41-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-43-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-45-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-47-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-49-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-51-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-53-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4016-55-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB