Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/09/2026, 15:07

General

  • Target
    Doc_File810398TT103.js
  • Size 63KB
  • Sample260917-shetva1tcs
  • SHA256 0140c873a5b2d498b28ad07c66848146edb650968410e5804bc4e235cf68d9ac
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Badlisted process makes network request 4 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Kills process with taskkill 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Doc_File810398TT103.js
    1⤵
      PID:3808
    • C:\Windows\system32\cmd.exe
      cmd /c %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\powershell.exe .($env:ComSpec[4,26,25]-join'') $env:bSeIbAnkz;
      1⤵
      • Process spawned unexpected child process
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe .($env:ComSpec[4,26,25]-join'') $env:bSeIbAnkz;
        2⤵
        • Badlisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5104
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\yg43glvz\yg43glvz.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3512
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES195A.tmp" "c:\Users\Admin\AppData\Local\Temp\yg43glvz\CSCBF92ED87AA7493986F22E55E1334438.TMP"
            4⤵
              PID:1100
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process cmd.exe -ArgumentList '/c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F' -WindowStyle Hidden -Wait
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2928
            • C:\Windows\system32\cmd.exe
              "C:\Windows\system32\cmd.exe" /c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F
              4⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:4220
              • C:\Windows\System32\taskkill.exe
                taskkill /IM RegAsm.exe /F
                5⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:1044
              • C:\Windows\System32\taskkill.exe
                taskkill /IM Vbc.exe /F
                5⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:2496
              • C:\Windows\System32\taskkill.exe
                taskkill /IM MsBuild.exe /F
                5⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:4896

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            ModuleAnalysisCache

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
            • Size 67KB
            • SHA256 96952b58e7507bfbf6b1edf838d41182ae4f94e983572fa0c037be46d4ab1b05
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 856B
            • SHA256 c64e7c3c115c0ed9d2bd09b17a6ce08fda57626ae7238055ca7ca78a872110c3
            • MD5 SHA1 SHA512 TLSH

            RES195A.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RES195A.tmp
            • Size 1KB
            • SHA256 15b360aafee3ddfb400c45fd2bbedbcebb31ecf9ce982d8a6fcba54af3547e64
            • MD5 SHA1 SHA512 TLSH

            yg43glvz.dll

            • Path C:\Users\Admin\AppData\Local\Temp\yg43glvz\yg43glvz.dll
            • Size 3KB
            • SHA256 7005442380e8240e916eb7b292bb8efa511c5d1851e4231419fbc0a844a3cc36
            • MD5 SHA1 SHA512 TLSH

            CSCBF92ED87AA7493986F22E55E1334438.TMP

            • Path \??\c:\Users\Admin\AppData\Local\Temp\yg43glvz\CSCBF92ED87AA7493986F22E55E1334438.TMP
            • Size 652B
            • SHA256 10df67b6d43bcc916078aef51f73fea245d30226b0b700ed2c1406d9ebdc97c0
            • MD5 SHA1 SHA512 TLSH

            yg43glvz.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\yg43glvz\yg43glvz.0.cs
            • Size 213B
            • SHA256 a0fdb9548ff75cbf48acee5affaa578eb60798807cb792da4d9640cfb371f157
            • MD5 SHA1 SHA512 TLSH

            yg43glvz.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\yg43glvz\yg43glvz.cmdline
            • Size 369B
            • SHA256 993a46962923a947d19ed4e947a6695e50e92513122b94c4c110a939bf50b0ae
            • MD5 SHA1 SHA512 TLSH

            memory/5104-8-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-6-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-11-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-12-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-13-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-9-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-0-0x00007FFDB411F000-0x00007FFDB4120000-memory.dmp

            memory/5104-7-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-26-0x00000261EBB90000-0x00000261EBB98000-memory.dmp

            memory/5104-10-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-5-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-28-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-29-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-30-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-31-0x00000261EBCC0000-0x00000261EBCF2000-memory.dmp

            memory/5104-4-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp

            memory/5104-3-0x00000261EBB40000-0x00000261EBB62000-memory.dmp

            memory/5104-38-0x00007FFDB3F90000-0x00007FFDB4934000-memory.dmp