Analysis

  • user interaction
    yes
  • max time kernel
    598s
  • max time network
    439s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    31/03/2026, 00:21

General

  • Target
    $PLUGINSDIR/StdUtils.dll
  • Size 110KB
  • Sample260331-anmsjaey4s
  • SHA256 c602c44a4d4088dbf5a659f36ba1c3a9d81f8367577de0cb940c0b8afee5c376
  • 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\StdUtils.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4504
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 616
        3⤵
        • Program crash
        PID:5108
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4504 -ip 4504
    1⤵
      PID:4420

    Network

          MITRE ATT&CK Enterprise v16

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