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Analysis

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

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2024, 03:36

General

  • Target

    ba33cafd58294e0f8b51da1fd785ae22_JaffaCakes118.exe

  • Size

    232KB

  • MD5

    ba33cafd58294e0f8b51da1fd785ae22

  • SHA1

    64eb6eb356506834ddde61a5a4269323f2ecd570

  • SHA256

    f418a4d02c9e155e192e34a8c91f01ae96af15699bbc1ab1073e75acaa9a0b87

  • SHA512

    6c144bb8247f89f545416d01e4707de53fc5bc781a18bdee6f7c35340622ef4a59d2e1deff10fe088f0688b996fbb55ad34d51d9cb093ee2d3aa23e40a2746ff

  • SSDEEP

    6144:Zyz3PFKs78vpRTlEqxF6snji81RUinKbLOP:uPhpm

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\ba33cafd58294e0f8b51da1fd785ae22_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ba33cafd58294e0f8b51da1fd785ae22_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:4736
    • C:\Users\Admin\numum.exe
      "C:\Users\Admin\numum.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:3424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\numum.exe

    Filesize

    232KB

    MD5

    8d2597bef30563dd3cb91e971dc79f30

    SHA1

    1c7a8716a6a65fde1538699a5b3dc48b8f01ae39

    SHA256

    db3b4ea5ef8d7b65e84c38e6438941f227ff237b3737a1b48578a37434706887

    SHA512

    48cb14e503cd11caee59fa74980fbe3e87257bcf89d20a84aca0ef3691a78d85d0d3b76a424e28a1cfacc29dd026b0aa83c6a3e6822f1f85dda70e7c76f4f9ef