Analysis
- max time kernel
58s - max time network
61s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
29/07/2026, 19:29
General
- Target e3fd83251ec912e4d4ed25c550b8c50d6d658fa196627d4a10c8d1ec92b568d2.exe
- Size 45KB
- Sample260729-x7c4rs1cmd
- SHA256 e3fd83251ec912e4d4ed25c550b8c50d6d658fa196627d4a10c8d1ec92b568d2
Malware Config
Extracted
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asyncrat
-
0.5.8
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Default
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greenika2.home-webserver.de:4557
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JYDFbaRIR4b6
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delay
3
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install
true
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install_file
winwebserver.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 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 1 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\e3fd83251ec912e4d4ed25c550b8c50d6d658fa196627d4a10c8d1ec92b568d2.exe"C:\Users\Admin\AppData\Local\Temp\e3fd83251ec912e4d4ed25c550b8c50d6d658fa196627d4a10c8d1ec92b568d2.exe"1⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "winwebserver" /tr '"C:\Users\Admin\AppData\Roaming\winwebserver.exe"' & exit2⤵
- Executes a command shell one-liner
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "winwebserver" /tr '"C:\Users\Admin\AppData\Roaming\winwebserver.exe"'3⤵
- 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\tmpFF46.tmp.bat""2⤵
- Executes a command shell one-liner
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\winwebserver.exe"C:\Users\Admin\AppData\Roaming\winwebserver.exe"3⤵
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C:\Users\Admin\AppData\Roaming\winwebserver.exe"C:\Users\Admin\AppData\Roaming\winwebserver.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpFF46.tmp.bat
winwebserver.exe
memory/2192-12-0x0000000075070000-0x000000007582C000-memory.dmp
memory/2192-14-0x0000000075070000-0x000000007582C000-memory.dmp
memory/2192-15-0x0000000005EB0000-0x000000000646A000-memory.dmp
memory/2192-16-0x00000000059C0000-0x0000000005A26000-memory.dmp
memory/4140-0-0x00000000751F2000-0x00000000751F3000-memory.dmp
memory/4140-1-0x0000000000AE0000-0x0000000000AF2000-memory.dmp
memory/4140-2-0x00000000751E0000-0x000000007599C000-memory.dmp
memory/4140-3-0x0000000005520000-0x00000000055BC000-memory.dmp
memory/4140-8-0x00000000751E0000-0x000000007599C000-memory.dmp