Analysis

  • max time kernel
    140s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 19:38

General

  • Target

    a7f2f51fcaf89b589027564417dd9a66_JaffaCakes118.exe

  • Size

    47KB

  • MD5

    a7f2f51fcaf89b589027564417dd9a66

  • SHA1

    549aaac5be040542aeeff394db477a1e4e31af0f

  • SHA256

    96dbedc79fdb68530d1b466e43f11fd545e4b21a6da420b7685a2e505a6091bd

  • SHA512

    4927072809077bad5b11bbf2ad464503f3241959e866bb889431e8aaf0714075d91e245af7f031b051151c29d9930ed785f0c5ea92db9d11f53b8cc465051047

  • SSDEEP

    768:09H7uX22vSpT4IxU7Ty6UB7Mo6y6h3oba4sKAuZSP:0tC8TVOPEH6H3obafmm

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
  • UPX packed file 5 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

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

  • Drops file in Windows directory 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 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\a7f2f51fcaf89b589027564417dd9a66_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a7f2f51fcaf89b589027564417dd9a66_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • 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:5080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A7F2F5~1.EXE >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Downloaded Program Files\AnXnubyMnv58c9vaECWX.cur

    Filesize

    20KB

    MD5

    2585ab7fbe7b81d9df4b9b2407b076e2

    SHA1

    d464c97f688f26ef4850380f15a8be52b640cd31

    SHA256

    da554f640b409b43e06e639674ee48ea097b3cd83a6c4d32ce8b25f31ddb44dc

    SHA512

    5cd3fc5b6bfc304ccfffb56cee95e12a4ebc72c69aa2545438bbac0fb66ed06b952c5da28361558a6e6348e5786b62bb4de6dd4e9e6d53c6b1faf5cbed1f78fd

  • memory/5080-0-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/5080-5-0x0000000010000000-0x0000000010012000-memory.dmp

    Filesize

    72KB

  • memory/5080-8-0x0000000010000000-0x0000000010012000-memory.dmp

    Filesize

    72KB

  • memory/5080-9-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB