Analysis

  • max time kernel
    149s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/07/2026, 14:55

General

  • Target
    Undertale/steam_api.dll
  • Size 210KB
  • Sample260722-samvgstvbv
  • SHA256 dfa223f72fe3b975b5033ec03d505e5a702bf4ff632bce7ba1b8a5ff411f0245
  • 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 behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Undertale\steam_api.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Undertale\steam_api.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3992
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 764
        3⤵
        • Program crash
        PID:4328
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3992 -ip 3992
    1⤵
      PID:2860

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/3992-0-0x0000000075190000-0x00000000751DC000-memory.dmp

          memory/3992-1-0x0000000074F60000-0x0000000075016000-memory.dmp

          memory/3992-4-0x00000000777B2000-0x00000000777B3000-memory.dmp

          memory/3992-5-0x00000000777B2000-0x00000000777B3000-memory.dmp

          memory/3992-6-0x00000000777B2000-0x00000000777B3000-memory.dmp

          memory/3992-7-0x0000000000950000-0x0000000000951000-memory.dmp

          memory/3992-8-0x0000000075190000-0x00000000751DC000-memory.dmp

          memory/3992-10-0x0000000074F60000-0x0000000075016000-memory.dmp