Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/10/2026, 16:51

General

  • Target
    $PLUGINSDIR/UserInfo.dll
  • Size 4KB
  • Sample261029-vc94xaev7m
  • SHA256 e0dc3112796dbaa37f25ab54b7fac2fbf791cbc6e36a84fc61c6423b84a3677b
  • MD5 SHA1 SHA512 TLSH
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\UserInfo.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3168
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:392
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 480
        3⤵
        • Program crash
        PID:3572
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
    1⤵
      PID:3244

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads