Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 14:35

General

  • Target

    fc80951e65ba38b71ff45ab23e7c49b3_JaffaCakes118.exe

  • Size

    200KB

  • MD5

    fc80951e65ba38b71ff45ab23e7c49b3

  • SHA1

    9998e37a0b71bac675eac3b681103a5bf9323492

  • SHA256

    89e81929e31df67d102b97bf1b3cd4b2a12a6609cc2f59807cefaf03cce66553

  • SHA512

    87a71ac5b8eda919b9ab5375359353746940b80189e7fd38b0de54221929856ce0385f7d5649b71e2dbba55bccd9e744ed4d403ad0effa0c0c1c53a1023e4e06

  • SSDEEP

    6144:m9SlSvwslnsn9+JuJbfoL2wVH9eI+NJWb:4vwslnsn9+JuJbfoL2wVH9eIJ

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 52 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\fc80951e65ba38b71ff45ab23e7c49b3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc80951e65ba38b71ff45ab23e7c49b3_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:4888
    • C:\Users\Admin\siiejih.exe
      "C:\Users\Admin\siiejih.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:228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\siiejih.exe

    Filesize

    200KB

    MD5

    2487831f5e20ecfb0d32159ba4e49d76

    SHA1

    cb5413b8f24e6e0633823cca9ce442703ad31876

    SHA256

    742e6912cbaf63baf460421410acf12876512aaf27f03193f24b0cc9ddf58fe5

    SHA512

    baafac67b3605c2b142d39aae3227a9c6be5ca35ad780df9eda1bc2b066ea9c0d9d596212ff481a6c9b0ed83913a581fb0c58be86deceb01dc441b51ed8314f3