Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
27/07/2026, 16:47
General
- Target yiosdfsdj2834923.exe
- Size 45KB
- Sample260727-van4naak7y
- SHA256 8c5c4a30f1495966bb1ab011ac5f0c8ffbaa3ac2e0df7932f728232c4e5f5911
Malware Config
Extracted
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asyncrat
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0.5.8
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Admin
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chat.ssrchat.com:80
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chat.ssrchat.com:443
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www.chat.ssrchat.com:80
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www.chat.ssrchat.com:443
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ssrchat.com:80
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ssrchat.com:443
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www.ssrchat.com:80
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www.ssrchat.com:443
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1IclAfowqOsE
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delay
3
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install
true
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install_file
yiosdfsdj2834923.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.
- 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 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\yiosdfsdj2834923.exe"C:\Users\Admin\AppData\Local\Temp\yiosdfsdj2834923.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 "yiosdfsdj2834923" /tr '"C:\Users\Admin\AppData\Roaming\yiosdfsdj2834923.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 "yiosdfsdj2834923" /tr '"C:\Users\Admin\AppData\Roaming\yiosdfsdj2834923.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\tmp405B.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\yiosdfsdj2834923.exe"C:\Users\Admin\AppData\Roaming\yiosdfsdj2834923.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\yiosdfsdj2834923.exe"C:\Users\Admin\AppData\Roaming\yiosdfsdj2834923.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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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
tmp405B.tmp.bat
yiosdfsdj2834923.exe
memory/4236-0-0x0000000075062000-0x0000000075063000-memory.dmp
memory/4236-1-0x00000000009F0000-0x0000000000A02000-memory.dmp
memory/4236-2-0x0000000075050000-0x000000007580C000-memory.dmp
memory/4236-3-0x00000000054F0000-0x000000000558C000-memory.dmp
memory/4236-9-0x0000000075050000-0x000000007580C000-memory.dmp
memory/5304-12-0x0000000075050000-0x000000007580C000-memory.dmp
memory/5304-14-0x0000000075050000-0x000000007580C000-memory.dmp