Analysis
- max time kernel
60s - max time network
64s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
28/07/2026, 19:58
General
- Target 0fb484051a7818bf1d23017d0871af36ac4c367b150253a9bc2834bae1f3fab8.exe
- Size 112KB
- Sample260728-ypvrjabe94
- SHA256 0fb484051a7818bf1d23017d0871af36ac4c367b150253a9bc2834bae1f3fab8
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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789bet.estermex.com.mx:443
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789bet.estermex.com.mx:80
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www.789bet.estermex.com.mx:443
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www.789bet.estermex.com.mx:80
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6sZUHhREgNF8
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delay
3
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install
true
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install_file
ChromeUpdate.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 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\0fb484051a7818bf1d23017d0871af36ac4c367b150253a9bc2834bae1f3fab8.exe"C:\Users\Admin\AppData\Local\Temp\0fb484051a7818bf1d23017d0871af36ac4c367b150253a9bc2834bae1f3fab8.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 "ChromeUpdate" /tr '"C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"' & exit2⤵
- Executes a command shell one-liner
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "ChromeUpdate" /tr '"C:\Users\Admin\AppData\Roaming\ChromeUpdate.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\tmp191C.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\ChromeUpdate.exe"C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"3⤵
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C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"C:\Users\Admin\AppData\Roaming\ChromeUpdate.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmp191C.tmp.bat
ChromeUpdate.exe
memory/1680-0-0x00000000744C2000-0x00000000744C3000-memory.dmp
memory/1680-1-0x00000000003B0000-0x00000000003D2000-memory.dmp
memory/1680-2-0x00000000744B0000-0x0000000074C6C000-memory.dmp
memory/1680-3-0x0000000004DB0000-0x0000000004E4C000-memory.dmp
memory/1680-8-0x00000000744B0000-0x0000000074C6C000-memory.dmp
memory/4288-12-0x0000000073CF2000-0x0000000073CF3000-memory.dmp
memory/4288-14-0x0000000073CF2000-0x0000000073CF3000-memory.dmp