Analysis

  • max time kernel
    149s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-08-2024 21:13

General

  • Target

    87b21458c2bf93ff2df92b3abca3b74b_JaffaCakes118.exe

  • Size

    288KB

  • MD5

    87b21458c2bf93ff2df92b3abca3b74b

  • SHA1

    c45872d0171b70d88f21ba904b3fe6ac77032e7c

  • SHA256

    92190ba5d831a90130960adf8ba7c76e1ecdd57fc5907cfb54d9c44fe2912bcf

  • SHA512

    b7feefbe7cac8510ca67feb70a6f8231e2297472f035a0c9de5727e04265863be8a5441d8ad9461f1f6b7df8c0bdb2dff68c2388536af2c10760e0bd77e11af0

  • SSDEEP

    6144:w5c0f7XP+g3AGJpWVzuChYrgns+XuCKnvmb7/D263VAPL8R8FUjcWMHu9tmuE79x:Z27/XvLWpukogns+XuCKnvmb7/D263QF

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\87b21458c2bf93ff2df92b3abca3b74b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\87b21458c2bf93ff2df92b3abca3b74b_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:1152
    • C:\Users\Admin\jrcov.exe
      "C:\Users\Admin\jrcov.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:2704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\jrcov.exe

    Filesize

    288KB

    MD5

    3ad0f076a756c53ae6b5ba165b557953

    SHA1

    2287bfe15526389f107ccb3ab07b7b2154804ef7

    SHA256

    b3bdeecc21d21394cc02474bc7fd2a34a8f10ddcddd13ade6f5d4a1fe4fc587f

    SHA512

    0e96d798dcd6cfea512a3e10c9d68321483d22594efd0a9b95ed61b2e979ec34107101cb0b52c93a5faded16f36957b1c38d208ee08b3b02312b6fcba01119ef