Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    31/07/2026, 10:33

General

  • Target
    $PLUGINSDIR/InstallOptions.dll
  • Size 14KB
  • Sample260731-mlt52sgf89
  • SHA256 e560384c5298ee2123e8340e716b2c4680f51b4d0347995ba3290dbd1130c6c0
  • MD5 SHA1 SHA512 SSDEEP 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\InstallOptions.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\InstallOptions.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 636
        3⤵
        • Program crash
        PID:4928
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4776 -ip 4776
    1⤵
      PID:3984

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads