Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260618-en - resource tags
- submitted
20/06/2026, 11:02
General
- Target Tax_Notice.exe
- Size 118KB
- Sample260620-m5evgafw8w
- SHA256 93dd8b7b393289f88493596faa4ae70054d9eb4fe47f2dd334f0c6bb5262f2a8
Malware Config
Extracted
-
asyncrat
-
Venom RAT + HVNC + Stealer + Grabber v6.0.3
-
Default
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103.119.15.189:4449
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znxhczovkmsywv
-
delay
1
-
install
false
-
install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Family: VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
- Async RAT payload 1 IoCs
- Custom signatureVenomRAT 1 IoCs
Detects VenomRAT.
- Windows security bypass 2 TTPs 1 IoCs
- Adds policy Run key to start application 2 TTPs 4 IoCs
- Windows security modification 2 TTPs 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 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
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 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.exe"C:\Users\Admin\AppData\Local\Temp\Tax_Notice.exe"1⤵
- Windows security bypass
- Adds policy Run key to start application
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /create /tn "NVDA_Remote_Helper" /tr "\"C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\NVDA\svchost.exe\"" /sc ONLOGON /rl HIGHEST /f /delay 0001:002⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\NVDA\svchost.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\NVDA\svchost.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
nvdaHelperRemote.dll
svchost.exe
memory/1888-13-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-14-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-4-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-6-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-7-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-8-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-9-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-10-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-11-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-16-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-3-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-0-0x000002E49CC30000-0x000002E49CC4C000-memory.dmp
memory/1888-12-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-17-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-18-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-19-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-20-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-21-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-22-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-23-0x00007FFD69A10000-0x00007FFD6A3B4000-memory.dmp
memory/1888-2-0x000002E49CD20000-0x000002E49CD38000-memory.dmp
memory/1888-1-0x00007FFD69B9F000-0x00007FFD69BA0000-memory.dmp