Analysis
- max time kernel
299s - max time network
292s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
07/07/2026, 17:15
General
- Target Tax_Notice_92730.exe
- Size 287KB
- Sample260707-vstrvsat91
- SHA256 93694473622f770d539263ae211dde4715264b0f23c858ba69796adca76cae35
Malware Config
Extracted
-
asyncrat
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Venom RAT + HVNC + Stealer + Grabber v6.0.3
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Default
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192.252.180.45:4449
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jsatnrumqsvfenqdgep
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delay
1
-
install
false
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install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Adds Run key to start application 2 TTPs 3 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 1 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exe"C:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RuntimeBroker\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RuntimeBroker\RuntimeBroker.exe1⤵
- Adds Run key to start application
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exeC:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exe1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RuntimeBroker\RuntimeBroker.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RuntimeBroker\RuntimeBroker.exe"3⤵
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-
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exe"C:\Users\Admin\AppData\Local\Temp\Tax_Notice_92730.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
RuntimeBroker.exe
nvml.dll
DataLogs.conf
memory/824-25-0x00007FFFE0C80000-0x00007FFFE0CC1000-memory.dmp
memory/824-27-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-22-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-21-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-20-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-19-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-18-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/824-23-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/2352-90-0x0000018E15720000-0x0000018E15740000-memory.dmp
memory/2352-48-0x0000018E03A40000-0x0000018E03A60000-memory.dmp
memory/2352-49-0x0000018E03E60000-0x0000018E03F60000-memory.dmp
memory/2352-63-0x0000018E03E20000-0x0000018E03E40000-memory.dmp
memory/2352-45-0x0000018E001E0000-0x0000018E002E0000-memory.dmp
memory/2352-43-0x0000018E001E0000-0x0000018E002E0000-memory.dmp
memory/2484-229-0x00007FFFCF710000-0x00007FFFCF751000-memory.dmp
memory/3500-38-0x00007FFFE4290000-0x00007FFFE42D1000-memory.dmp
memory/4804-256-0x00007FFFE4290000-0x00007FFFE42D1000-memory.dmp
memory/5760-24-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-15-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-17-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-26-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-16-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-28-0x00007FFFE4290000-0x00007FFFE42D1000-memory.dmp
memory/5760-30-0x000000001CC50000-0x000000001CCC6000-memory.dmp
memory/5760-31-0x000000001B3D0000-0x000000001B436000-memory.dmp
memory/5760-32-0x0000000002400000-0x000000000241E000-memory.dmp
memory/5760-34-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-35-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-36-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-37-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-0-0x0000000002060000-0x000000000207C000-memory.dmp
memory/5760-40-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-14-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-13-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-50-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-12-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-11-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-10-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-5-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-4-0x00007FFFCEAA0000-0x00007FFFCF444000-memory.dmp
memory/5760-2-0x00000000021E0000-0x00000000021F8000-memory.dmp
memory/5760-1-0x00007FFFCEC2F000-0x00007FFFCEC30000-memory.dmp