Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
02/07/2026, 02:04
General
- Target bvnrtyfgh.exe
- Size 45KB
- Sample260702-chntrahv5n
- SHA256 0c491272208bf4c0bd3d3802df6e4056738706b3e71bc531532797dc73777e0a
Malware Config
Extracted
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asyncrat
-
0.5.8
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Admin
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sexdeo.net:80
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sexdeo.net:443
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www.sexdeo.net:80
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www.sexdeo.net:443
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ssh.sexdeo.net:80
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ssh.sexdeo.net:443
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JUx4XR7A4dFQ
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delay
3
-
install
true
-
install_file
bvnrtyfgh.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).
- 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 29 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\bvnrtyfgh.exe"C:\Users\Admin\AppData\Local\Temp\bvnrtyfgh.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 "bvnrtyfgh" /tr '"C:\Users\Admin\AppData\Roaming\bvnrtyfgh.exe"' & exit2⤵
- 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 "bvnrtyfgh" /tr '"C:\Users\Admin\AppData\Roaming\bvnrtyfgh.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\tmpB224.tmp.bat""2⤵
- 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\bvnrtyfgh.exe"C:\Users\Admin\AppData\Roaming\bvnrtyfgh.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
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C:\Users\Admin\AppData\Roaming\bvnrtyfgh.exe"C:\Users\Admin\AppData\Roaming\bvnrtyfgh.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpB224.tmp.bat
bvnrtyfgh.exe
memory/4640-12-0x0000000074960000-0x000000007511C000-memory.dmp
memory/4640-14-0x0000000074960000-0x000000007511C000-memory.dmp
memory/5336-0-0x0000000074972000-0x0000000074973000-memory.dmp
memory/5336-1-0x0000000000E60000-0x0000000000E72000-memory.dmp
memory/5336-2-0x0000000074960000-0x000000007511C000-memory.dmp
memory/5336-3-0x00000000059C0000-0x0000000005A5C000-memory.dmp
memory/5336-8-0x0000000074960000-0x000000007511C000-memory.dmp