Analysis
- max time kernel
83s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
03/07/2026, 14:35
General
- Target ff351d50172af72b293069c5768516faa3866e18a77daf664ce1521266c44350.exe
- Size 45KB
- Sample260703-rydq2sa14t
- SHA256 ff351d50172af72b293069c5768516faa3866e18a77daf664ce1521266c44350
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
cuongsex.com:80
-
cuongsex.com:22
-
cuongsex.com:8080
-
cuongsex.com:8880
-
cuongsex.com:2052
-
cuongsex.com:2082
-
cuongsex.com:2086
-
cuongsex.com:2095
-
cuongsex.com:443
-
cuongsex.com:2053
-
cuongsex.com:2083
-
cuongsex.com:2087
-
cuongsex.com:2096
-
cuongsex.com:8443
-
www.cuongsex.com:80
-
www.cuongsex.com:22
-
www.cuongsex.com:8080
-
www.cuongsex.com:8880
-
www.cuongsex.com:2052
-
www.cuongsex.com:2082
-
qbHuo321egUC
-
delay
0
-
install
true
-
install_file
nri3h.exe
-
install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- Executes dropped EXE 2 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- 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.
- Checks SCSI registry key(s) 3 TTPs 42 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 14 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 31 IoCs
- Suspicious use of AdjustPrivilegeToken 14 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ff351d50172af72b293069c5768516faa3866e18a77daf664ce1521266c44350.exe"C:\Users\Admin\AppData\Local\Temp\ff351d50172af72b293069c5768516faa3866e18a77daf664ce1521266c44350.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nri3h" /tr '"C:\Users\Admin\AppData\Roaming\nri3h.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "nri3h" /tr '"C:\Users\Admin\AppData\Roaming\nri3h.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp97F5.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
-
-
C:\Users\Admin\AppData\Roaming\nri3h.exe"C:\Users\Admin\AppData\Roaming\nri3h.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Roaming\nri3h.exe"C:\Users\Admin\AppData\Roaming\nri3h.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
-
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
-
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
Persistence
Boot or Logon Autostart Execution
1Active Setup
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Active Setup
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
tmp97F5.tmp.bat
nri3h.exe
memory/2124-1-0x0000000000720000-0x0000000000732000-memory.dmp
memory/2124-2-0x0000000074520000-0x0000000074CDC000-memory.dmp
memory/2124-3-0x00000000052B0000-0x000000000534C000-memory.dmp
memory/2124-8-0x0000000074520000-0x0000000074CDC000-memory.dmp
memory/2124-0-0x0000000074532000-0x0000000074533000-memory.dmp
memory/3488-24-0x00000209001E0000-0x00000209002E0000-memory.dmp
memory/3488-22-0x00000209001E0000-0x00000209002E0000-memory.dmp
memory/3488-66-0x0000020914710000-0x0000020914730000-memory.dmp
memory/3488-41-0x0000020903ED0000-0x0000020903FD0000-memory.dmp
memory/3488-40-0x0000020903CF0000-0x0000020903D10000-memory.dmp
memory/3488-46-0x0000020903DF0000-0x0000020903E10000-memory.dmp
memory/4516-191-0x000000000F430000-0x000000000FCAB000-memory.dmp
memory/4568-14-0x00000000744B0000-0x0000000074C6C000-memory.dmp
memory/4568-12-0x00000000744B0000-0x0000000074C6C000-memory.dmp