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Analysis

  • max time kernel
    150s
  • 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
    29/09/2024, 09:18

General

  • Target

    fe395a54bec78d46b892bd6b761a1388_JaffaCakes118.exe

  • Size

    56KB

  • MD5

    fe395a54bec78d46b892bd6b761a1388

  • SHA1

    5c65dfde1733c0198f5559d1ff803aa5e0e4e3d2

  • SHA256

    bbbaa442ac7de200226ba14476ee403c10c2af2ec270ee3d5f99b58f05ba654c

  • SHA512

    88779692c417ef96768c36c23c81d47e1b5c77ee449c66d0cbb7ca6d7022ce72d14255612fa66e390648e9f73c7b5e107fd19b032f9cb84c5931ea3103f5f9c0

  • SSDEEP

    768:JJHtP5nt8A6OtRGf0mq/6/Q/9NF0+LEc8af3ts0E9d:JhnSpSWq2oS+Ljb3ts0E9d

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 1 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe395a54bec78d46b892bd6b761a1388_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe395a54bec78d46b892bd6b761a1388_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\gilen.exe
      "C:\Users\Admin\gilen.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
      • Suspicious use of WriteProcessMemory
      PID:3808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\gilen.exe

    Filesize

    56KB

    MD5

    bf38c3c3aecef9ad92b000f0dd654622

    SHA1

    eb3976ab40af3adf0faea79e53303a1d0c13d7c8

    SHA256

    a505de1d66b9ec50dc1e5534ba67c0c80bd6992c2dc017b297d2c813ab38e1f5

    SHA512

    54489ea5c9751296a83d57d912daa29f5bdbf77a4da8a61675c55efaa6451ff8a8c15701903a8215556ec5c68ed3cc456d28e988079fadf23fcabcefd14e6f8b