Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
08/07/2026, 04:20
General
- Target 63b3793790d7e88912d64a551f2be022e6430ffb8d911f748191c02dd66214c1.exe
- Size 45KB
- Sample260708-ex3bssax4x
- SHA256 63b3793790d7e88912d64a551f2be022e6430ffb8d911f748191c02dd66214c1
Malware Config
Extracted
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asyncrat
-
0.5.8
-
Default
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103.109.100.136:80
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103.109.100.136:22
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103.109.100.136:8080
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103.109.100.136:8880
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103.109.100.136:2052
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103.109.100.136:2082
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103.109.100.136:2086
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103.109.100.136:2095
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103.109.100.136:443
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103.109.100.136:2053
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103.109.100.136:2083
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103.109.100.136:2087
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103.109.100.136:2096
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103.109.100.136:8443
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ECUgJknVOigG
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delay
0
-
install
true
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install_file
2tujk.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).
- 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 29 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\63b3793790d7e88912d64a551f2be022e6430ffb8d911f748191c02dd66214c1.exe"C:\Users\Admin\AppData\Local\Temp\63b3793790d7e88912d64a551f2be022e6430ffb8d911f748191c02dd66214c1.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 "2tujk" /tr '"C:\Users\Admin\AppData\Roaming\2tujk.exe"' & exit2⤵
- 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 "2tujk" /tr '"C:\Users\Admin\AppData\Roaming\2tujk.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4220.tmp.bat""2⤵
- 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\2tujk.exe"C:\Users\Admin\AppData\Roaming\2tujk.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\2tujk.exe"C:\Users\Admin\AppData\Roaming\2tujk.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
tmp4220.tmp.bat
2tujk.exe
memory/5172-0-0x0000000074262000-0x0000000074263000-memory.dmp
memory/5172-1-0x0000000000A30000-0x0000000000A42000-memory.dmp
memory/5172-2-0x0000000074250000-0x0000000074A0C000-memory.dmp
memory/5172-3-0x00000000055C0000-0x000000000565C000-memory.dmp
memory/5172-8-0x0000000074250000-0x0000000074A0C000-memory.dmp
memory/6124-12-0x0000000074080000-0x000000007483C000-memory.dmp
memory/6124-14-0x0000000074080000-0x000000007483C000-memory.dmp