Analysis
- max time kernel
150s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
05/09/2026, 17:17
General
- Target 7ab438709ad3521afca9653e4fe44e07ed1766335bc862e4d4eec3ff172aee89.exe
- Size 50KB
- Sample260905-vtp53awvav
- SHA256 7ab438709ad3521afca9653e4fe44e07ed1766335bc862e4d4eec3ff172aee89
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
cZ8eAY7C2Qrx
-
delay
3
-
install
true
-
install_file
kkkk.exe
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install_folder
%AppData%
-
local_host
127.0.0.1
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 64 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\7ab438709ad3521afca9653e4fe44e07ed1766335bc862e4d4eec3ff172aee89.exe"C:\Users\Admin\AppData\Local\Temp\7ab438709ad3521afca9653e4fe44e07ed1766335bc862e4d4eec3ff172aee89.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 "kkkk" /tr '"C:\Users\Admin\AppData\Roaming\kkkk.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 "kkkk" /tr '"C:\Users\Admin\AppData\Roaming\kkkk.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\tmp22C1.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\kkkk.exe"C:\Users\Admin\AppData\Roaming\kkkk.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Users\Admin\AppData\Roaming\kkkk.exe"C:\Users\Admin\AppData\Roaming\kkkk.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
tmp22C1.tmp.bat
kkkk.exe
memory/2456-0-0x0000000074B92000-0x0000000074B93000-memory.dmp
memory/2456-1-0x0000000000E70000-0x0000000000E82000-memory.dmp
memory/2456-2-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/2456-3-0x0000000006250000-0x00000000062B6000-memory.dmp
memory/2456-4-0x0000000006360000-0x00000000063FC000-memory.dmp
memory/2456-10-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4868-13-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4868-14-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4868-16-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4868-17-0x0000000074B80000-0x000000007533C000-memory.dmp