Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
01/07/2026, 14:36
General
- Target 074b909d34b9b6ba084ac6b53d6ed14a8b11d2589ff0827b58cf9ed96da43f83.exe
- Size 45KB
- Sample260701-rymzqah16w
- SHA256 074b909d34b9b6ba084ac6b53d6ed14a8b11d2589ff0827b58cf9ed96da43f83
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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xemphimxxxhay.com:80
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xemphimxxxhay.com:22
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xemphimxxxhay.com:8080
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xemphimxxxhay.com:8880
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xemphimxxxhay.com:2052
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xemphimxxxhay.com:2082
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xemphimxxxhay.com:2086
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xemphimxxxhay.com:2095
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xemphimxxxhay.com:443
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xemphimxxxhay.com:2053
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xemphimxxxhay.com:2083
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xemphimxxxhay.com:2087
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xemphimxxxhay.com:2096
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xemphimxxxhay.com:8443
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www.xemphimxxxhay.com:80
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www.xemphimxxxhay.com:22
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www.xemphimxxxhay.com:8080
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www.xemphimxxxhay.com:8880
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www.xemphimxxxhay.com:2052
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www.xemphimxxxhay.com:2082
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oxYA4F6E89tb
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delay
0
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install
true
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install_file
u44kt.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\074b909d34b9b6ba084ac6b53d6ed14a8b11d2589ff0827b58cf9ed96da43f83.exe"C:\Users\Admin\AppData\Local\Temp\074b909d34b9b6ba084ac6b53d6ed14a8b11d2589ff0827b58cf9ed96da43f83.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 "u44kt" /tr '"C:\Users\Admin\AppData\Roaming\u44kt.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 "u44kt" /tr '"C:\Users\Admin\AppData\Roaming\u44kt.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\tmp74F7.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\u44kt.exe"C:\Users\Admin\AppData\Roaming\u44kt.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
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C:\Users\Admin\AppData\Roaming\u44kt.exe"C:\Users\Admin\AppData\Roaming\u44kt.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
tmp74F7.tmp.bat
u44kt.exe
memory/1888-199-0x000001A46E6B0000-0x000001A46ED41000-memory.dmp
memory/1888-193-0x000001A46E6B0000-0x000001A46ED41000-memory.dmp
memory/3036-12-0x0000000074AB0000-0x000000007526C000-memory.dmp
memory/3036-14-0x0000000074AB0000-0x000000007526C000-memory.dmp
memory/4836-1-0x00000000003E0000-0x00000000003F2000-memory.dmp
memory/4836-2-0x0000000074C20000-0x00000000753DC000-memory.dmp
memory/4836-3-0x0000000004F80000-0x000000000501C000-memory.dmp
memory/4836-8-0x0000000074C20000-0x00000000753DC000-memory.dmp
memory/4836-0-0x0000000074C32000-0x0000000074C33000-memory.dmp
memory/5304-17-0x0000024F801E0000-0x0000024F802E0000-memory.dmp
memory/5304-24-0x0000024F83BC0000-0x0000024F83BE0000-memory.dmp
memory/5304-51-0x0000024F945D0000-0x0000024F945F0000-memory.dmp
memory/5304-25-0x0000024F93E00000-0x0000024F93F00000-memory.dmp
memory/5304-27-0x0000024F83D00000-0x0000024F83D20000-memory.dmp
memory/5304-16-0x0000024F801E0000-0x0000024F802E0000-memory.dmp
memory/5304-18-0x0000024F801E0000-0x0000024F802E0000-memory.dmp
memory/5700-192-0x000000000EB50000-0x000000000EBD0000-memory.dmp