Analysis

  • max time kernel
    134s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 05:00

General

  • Target

    81b9d4755bd10d821694b0368e48f4bf_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    81b9d4755bd10d821694b0368e48f4bf

  • SHA1

    73f52d90fa500ab88b2936270472e904a73974b2

  • SHA256

    e532922ae2ee2f87a81914f50c5737a81e59d2f66807550057800eabdc0c0549

  • SHA512

    510167bacab7ace16b7769043ebe4c4d3c0773336fe6cbd7fa0ebb747c5e978b04c0d43aa792d89d7f04c2d7634e06752411c2109feda5c5184a9fc6bd891455

  • SSDEEP

    384:6ukdYkIw6bwwf/uPy6xWVy4mQFfqEzGbPJ/Ymvu1bPYnoX7AK13mVRRolXA0x:6LlIw6bwwHyy6xWh5pGbB/YNttA5Ru

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 1 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Windows directory 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 2 IoCs

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

  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81b9d4755bd10d821694b0368e48f4bf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\81b9d4755bd10d821694b0368e48f4bf_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\81B9D4~1.EXE >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\BMsg6pdMD4ht.dll

          Filesize

          18KB

          MD5

          9348dc4e78308ba0fa9adb3f68aa9748

          SHA1

          cb14dc20a781692ee3ea20478c4e8fbb1770b9d3

          SHA256

          485286e9fce668d8dae4f90d09db58b8b6a26514befb2d2380790c9c7e0feb46

          SHA512

          dc3c73c93294f0eb2f9df60ca7229ce84ead4630f643b15a7978490fa8ca2f0d6f13a361986c0e69586dfeda680151b0aacd0e82748931d809156d933814d5f7

        • memory/3352-4-0x0000000010000000-0x0000000010011000-memory.dmp

          Filesize

          68KB

        • memory/3352-8-0x0000000010000000-0x0000000010011000-memory.dmp

          Filesize

          68KB