Analysis
- max time kernel
24s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
01/08/2026, 01:40
General
- Target 7a95e73032cb2cd22407c35cdd6b04b77dd9735c2b1931e9af03f526dc75d7c9.exe
- Size 48KB
- Sample260801-b3teasbf75
- SHA256 7a95e73032cb2cd22407c35cdd6b04b77dd9735c2b1931e9af03f526dc75d7c9
Malware Config
Extracted
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asyncrat
-
0.5.6A
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null
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seegersbelettering.nl:80
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seegersbelettering.nl:8080
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seegersbelettering.nl:443
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seegersbelettering.nl:8443
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seegersbelettering.nl:22
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seegersbelettering.nl:6607
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malware.seegersbelettering.nl:80
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malware.seegersbelettering.nl:8080
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malware.seegersbelettering.nl:443
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malware.seegersbelettering.nl:8443
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malware.seegersbelettering.nl:22
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malware.seegersbelettering.nl:6607
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lejkytfotaniitj
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delay
3
-
install
true
-
install_file
ChromeUpdate.exe
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install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Executes dropped EXE 2 IoCs
- 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.
- Delays execution with timeout.exe 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 33 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 4 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\7a95e73032cb2cd22407c35cdd6b04b77dd9735c2b1931e9af03f526dc75d7c9.exe"C:\Users\Admin\AppData\Local\Temp\7a95e73032cb2cd22407c35cdd6b04b77dd9735c2b1931e9af03f526dc75d7c9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'ChromeUpdate"' /tr "'C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"'2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAE18.tmp.bat""2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpAE18.tmp.bat
ChromeUpdate.exe
memory/4580-0-0x0000000000A20000-0x0000000000A32000-memory.dmp
memory/4580-1-0x00007FFE500DF000-0x00007FFE500E0000-memory.dmp
memory/4580-2-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp
memory/4580-3-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp
memory/4580-4-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp
memory/4580-8-0x00007FFE4FF50000-0x00007FFE508F4000-memory.dmp