Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
01/07/2026, 11:57
General
- Target 12506b350d6650b1cf35bc66f3b70038b76f2f845cd1179a980d31df26c8f19a.exe
- Size 45KB
- Sample260701-n4mpcsft2x
- SHA256 12506b350d6650b1cf35bc66f3b70038b76f2f845cd1179a980d31df26c8f19a
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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istanbulozelegitim.net:80
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istanbulozelegitim.net:22
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istanbulozelegitim.net:8080
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istanbulozelegitim.net:8880
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istanbulozelegitim.net:2052
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istanbulozelegitim.net:2082
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istanbulozelegitim.net:2086
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istanbulozelegitim.net:2095
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istanbulozelegitim.net:443
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istanbulozelegitim.net:2053
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istanbulozelegitim.net:2083
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istanbulozelegitim.net:2087
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istanbulozelegitim.net:2096
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istanbulozelegitim.net:8443
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www.istanbulozelegitim.net:80
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www.istanbulozelegitim.net:22
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www.istanbulozelegitim.net:8080
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www.istanbulozelegitim.net:8880
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www.istanbulozelegitim.net:2052
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www.istanbulozelegitim.net:2082
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xxgvuHY8liS8
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delay
0
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install
true
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install_file
3yudi.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\12506b350d6650b1cf35bc66f3b70038b76f2f845cd1179a980d31df26c8f19a.exe"C:\Users\Admin\AppData\Local\Temp\12506b350d6650b1cf35bc66f3b70038b76f2f845cd1179a980d31df26c8f19a.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 "3yudi" /tr '"C:\Users\Admin\AppData\Roaming\3yudi.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 "3yudi" /tr '"C:\Users\Admin\AppData\Roaming\3yudi.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\tmp93.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\3yudi.exe"C:\Users\Admin\AppData\Roaming\3yudi.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Roaming\3yudi.exe"C:\Users\Admin\AppData\Roaming\3yudi.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
prep_Activatable Class_Hermes_perf.cache
tmp93.tmp.bat
3yudi.exe
memory/2964-17-0x000002AB001E0000-0x000002AB002E0000-memory.dmp
memory/2964-42-0x000002AB03D30000-0x000002AB03D50000-memory.dmp
memory/2964-41-0x000002AB13EB0000-0x000002AB13FB0000-memory.dmp
memory/2964-51-0x000002AB14200000-0x000002AB14220000-memory.dmp
memory/2964-40-0x000002AB03D10000-0x000002AB03D30000-memory.dmp
memory/3148-12-0x0000000074170000-0x000000007492C000-memory.dmp
memory/3148-14-0x0000000074170000-0x000000007492C000-memory.dmp
memory/4696-8-0x0000000074340000-0x0000000074AFC000-memory.dmp
memory/4696-3-0x0000000004E70000-0x0000000004F0C000-memory.dmp
memory/4696-2-0x0000000074340000-0x0000000074AFC000-memory.dmp
memory/4696-0-0x0000000074352000-0x0000000074353000-memory.dmp
memory/4696-1-0x0000000000440000-0x0000000000452000-memory.dmp