Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/09/2026, 17:20

General

  • Target
    msvcr100.dll
  • Size 169.4MB
  • Sample260916-vwpbjstble
  • SHA256 84610161cde8f1b2aa9b30def97f81428c33f34d0b856f8ac2d2c4bf99d66b74
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3872
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c powershell "Get-WmiObject Win32_VideoController | Select-Object -ExpandProperty CurrentRefreshRate"
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5052
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell "Get-WmiObject Win32_VideoController | Select-Object -ExpandProperty CurrentRefreshRate"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 664
        3⤵
        • Program crash
        PID:5104
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 768
        3⤵
        • Program crash
        PID:3328
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1416 -ip 1416
    1⤵
      PID:3396
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1416 -ip 1416
      1⤵
        PID:3132

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            __PSScriptPolicyTest_d0edbobt.wff.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d0edbobt.wff.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            memory/1416-0-0x0000000078AA0000-0x0000000078B5F000-memory.dmp

            memory/3984-4-0x00000000054F0000-0x0000000005B18000-memory.dmp

            memory/3984-13-0x0000000005D80000-0x00000000060D4000-memory.dmp

            memory/3984-2-0x0000000002A10000-0x0000000002A46000-memory.dmp

            memory/3984-5-0x0000000005370000-0x0000000005392000-memory.dmp

            memory/3984-6-0x0000000005410000-0x0000000005476000-memory.dmp

            memory/3984-7-0x0000000005C10000-0x0000000005C76000-memory.dmp

            memory/3984-1-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

            memory/3984-3-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

            memory/3984-16-0x0000000006310000-0x000000000632E000-memory.dmp

            memory/3984-17-0x00000000063A0000-0x00000000063EC000-memory.dmp

            memory/3984-18-0x0000000006870000-0x0000000006906000-memory.dmp

            memory/3984-19-0x00000000067F0000-0x000000000680A000-memory.dmp

            memory/3984-20-0x0000000006840000-0x0000000006862000-memory.dmp

            memory/3984-21-0x00000000078C0000-0x0000000007E64000-memory.dmp

            memory/3984-22-0x00000000084F0000-0x0000000008B6A000-memory.dmp