Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
18/10/2026, 12:18
General
- Target f8bet.trangchu1.site.exe
- Size 56KB
- Sample261018-pgpe4sdx5x
- SHA256 7c23efd42999e7d70699e60d360b96c820f6e3db6320b756585f5a9533ea0631
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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f8bet.trangchu1.site:443
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f8bet.trangchu1.site:8848
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f8bet.trangchu1.site:8080
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kBVPjakHQ19X
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delay
3
-
install
true
-
install_file
AsyncRat.exe
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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
- 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 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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 31 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f8bet.trangchu1.site.exe"C:\Users\Admin\AppData\Local\Temp\f8bet.trangchu1.site.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5980.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
-
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C:\Users\Admin\AppData\Roaming\AsyncRat.exe"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\AsyncRat.exe"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmp5980.tmp.bat
AsyncRat.exe
memory/4264-0-0x0000000074912000-0x0000000074913000-memory.dmp
memory/4264-1-0x0000000000460000-0x0000000000474000-memory.dmp
memory/4264-2-0x0000000074900000-0x00000000750BC000-memory.dmp
memory/4264-3-0x0000000004E90000-0x0000000004F2C000-memory.dmp
memory/4264-9-0x0000000074900000-0x00000000750BC000-memory.dmp
memory/4348-12-0x0000000074900000-0x00000000750BC000-memory.dmp
memory/4348-14-0x0000000074900000-0x00000000750BC000-memory.dmp