Analysis

  • max time kernel
    93s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 14:58

General

  • Target

    JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe

  • Size

    55KB

  • MD5

    40bf7c35b44d4b147c2e0969456bc557

  • SHA1

    3946b32552c81f9c254ae459a4f0e72c426be303

  • SHA256

    db5f68de01162f9978cee6bbd6e478400635ed609046d000144171a152055e5f

  • SHA512

    2190297bd25d90263cd7ba4b34ba496caecc419d2c078f9fc158bad3e7d5c30d2996c2b84f931a7711bb1076ae6376e58c48978fa38f3d2bf1a62b107d9a3e87

  • SSDEEP

    1536:YdtD3Qqymrr0Hva/Gey+I9LuaQSzdbbSkOep:YvHypsjy+cLZzpzp

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 2 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.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40bf7c35b44d4b147c2e0969456bc557.exe"
    1⤵
    • Checks computer location settings
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3504

Network

        MITRE ATT&CK Enterprise v15

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        Downloads