Analysis

  • max time kernel
    898s
  • max time network
    438s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    07/09/2026, 03:48

General

  • Target
    browser/resources/app.asar.unpacked/node_modules/utf-8-validate/prebuilds/win32-ia32/node.napi.dll
  • Size 119KB
  • Sample260907-ec7qsaee87
  • SHA256 0808ab542c43b9df85b668a02f0705529b7bb9ac79e26b0776682657c6005352
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

  • Program crash 2 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\browser\resources\app.asar.unpacked\node_modules\utf-8-validate\prebuilds\win32-ia32\node.napi.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\browser\resources\app.asar.unpacked\node_modules\utf-8-validate\prebuilds\win32-ia32\node.napi.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 560
        3⤵
        • Program crash
        PID:2828
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 800
        3⤵
        • Program crash
        PID:552
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4940 -ip 4940
    1⤵
      PID:3904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4940 -ip 4940
      1⤵
        PID:2052

      Network

            MITRE ATT&CK Enterprise v16

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