Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2024 16:57

General

  • Target

    41053ca721db740b5f2e6421c5bb1e9e_JaffaCakes118.exe

  • Size

    124KB

  • MD5

    41053ca721db740b5f2e6421c5bb1e9e

  • SHA1

    24edea4f61720876163476ba0934061a4e8baf13

  • SHA256

    5345fc00dab0ace61bccb2b9a84f8a6eec20ca45ecb0c08b633001b9c149d824

  • SHA512

    7811daea8d34f15fc33a420a460f37a1ba5438664b552e8b2d0dcc23a45e196c66ec31a9090039380f6a3461ff7ff69f024cd670ca313f1491cf376e008472e6

  • SSDEEP

    1536:vAEchwRKouBxeDtMYHa27J14ltxporZ45i8NeG0h/l:oEchwRKokeV6gJ1uCt45yt

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 50 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\41053ca721db740b5f2e6421c5bb1e9e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\41053ca721db740b5f2e6421c5bb1e9e_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:4076
    • C:\Users\Admin\cfkid.exe
      "C:\Users\Admin\cfkid.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:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\cfkid.exe

    Filesize

    124KB

    MD5

    074f39918664f047319efec25f88102f

    SHA1

    3c3835dce19d673dfb0d8e90e3112eeed9ee7675

    SHA256

    d114b62f73198f63b9ae20ed762800a8f6ec4ab5b0db253e12d3706610fa28e9

    SHA512

    5a051d3efca42b0043398e27bb2efd941548d78225af19f8e1ef2d0b8ee11dc4b51598663675d261cfba00c98a552f2cf4d15669044b3fcd43c231a67a5ab94d