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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 11:47

General

  • Target

    133c7131ee5f9c9194e41b7677605ed7_JaffaCakes118.exe

  • Size

    440KB

  • MD5

    133c7131ee5f9c9194e41b7677605ed7

  • SHA1

    4541902686d805ef7202a477db1ddd52e6d7be56

  • SHA256

    76e6d2f667107e48a4e7757a04acfe6437bac1a25035ccd3f091be730bad2205

  • SHA512

    8f5ff1b71b210e1bc381890dc66f12a07f3632e68ed667982a58ff1f47f06d364a03ccccbf7ee75b94e327b2eee392e90b58729134ab2691da3507e36f273005

  • SSDEEP

    6144:4wW0jqFk7qFoQudlhiP5+6yCtfGiIyZFGRY2:4fz2QudeYrCFwZ

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\133c7131ee5f9c9194e41b7677605ed7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\133c7131ee5f9c9194e41b7677605ed7_JaffaCakes118.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\tvkauq.exe
      "C:\Users\Admin\tvkauq.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:5100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\tvkauq.exe

    Filesize

    440KB

    MD5

    56e5f99b1f46bbc965aa5cd1658bafe9

    SHA1

    543e39be03550fde79a2581b1aaba6695edc4c97

    SHA256

    4d1425864f5dc76c67c57f903b406a7618c03928e4a1fb5413165900f5c284e9

    SHA512

    badf55ccf716ab00c78fdd214d958c53ddf6578466a30154a47c9e3bb0811b15a2f436cb4fdc2b6f4334c31c8b38693d2eed6980e7c614cf711dfe4e3c410536

  • memory/2180-0-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2180-25-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/5100-21-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/5100-26-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB