Analysis

  • max time kernel
    900s
  • max time network
    432s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251223-en
  • resource tags

    arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24/12/2025, 11:52

General

  • Target
    $PLUGINSDIR/registry.dll
  • Size 24KB
  • Sample251224-n17kcsby3c
  • SHA256 0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d
  • MD5 SHA1 SHA512 SSDEEP
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\registry.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5844
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\registry.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 468
        3⤵
        • Program crash
        PID:5324
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
    1⤵
      PID:4904

    Network

          MITRE ATT&CK Enterprise v16

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