Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
07/09/2026, 07:34
General
- Target AsyncClient.exe
- Size 45KB
- Sample260907-jd5p2afe78
- SHA256 6abd2bb9c138bd5bdbe7e717c4d5ef9c24c7176efb766e572c15c43435115b26
Malware Config
Extracted
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asyncrat
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Reborn V1
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Test
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43.228.157.121:8848
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l7vyhQEssQFr
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delay
3
-
install
true
-
install_file
Gandon.exe
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install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound
Network activity triggered a Suricata alert
- 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.
- 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\AsyncClient.exe"C:\Users\Admin\AppData\Local\Temp\AsyncClient.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 "Gandon" /tr '"C:\Users\Admin\AppData\Roaming\Gandon.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 "Gandon" /tr '"C:\Users\Admin\AppData\Roaming\Gandon.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\tmpA52F.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\Gandon.exe"C:\Users\Admin\AppData\Roaming\Gandon.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\Gandon.exe"C:\Users\Admin\AppData\Roaming\Gandon.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpA52F.tmp.bat
Gandon.exe
memory/3492-18-0x0000000006510000-0x0000000006ACA000-memory.dmp
memory/3492-12-0x0000000074F80000-0x000000007573C000-memory.dmp
memory/3492-14-0x0000000074F80000-0x000000007573C000-memory.dmp
memory/3492-19-0x0000000005A40000-0x0000000005AA6000-memory.dmp
memory/3492-20-0x0000000006D50000-0x0000000006DC6000-memory.dmp
memory/3492-21-0x0000000006F10000-0x0000000006FA2000-memory.dmp
memory/3492-22-0x0000000006D10000-0x0000000006D2E000-memory.dmp
memory/4168-3-0x0000000004CD0000-0x0000000004D6C000-memory.dmp
memory/4168-2-0x0000000074F80000-0x000000007573C000-memory.dmp
memory/4168-9-0x0000000074F80000-0x000000007573C000-memory.dmp
memory/4168-1-0x00000000002D0000-0x00000000002E2000-memory.dmp
memory/4168-0-0x0000000074F92000-0x0000000074F93000-memory.dmp