Analysis
- max time kernel
148s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
06/07/2026, 05:23
General
- Target ca2a0e44d9f4331c2a76b4b61809e2e26c0b76adf562059d98225d8790f43f2b.exe
- Size 45KB
- Sample260706-f3h1saas21
- SHA256 ca2a0e44d9f4331c2a76b4b61809e2e26c0b76adf562059d98225d8790f43f2b
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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xemphimxxxviet.com:80
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xemphimxxxviet.com:22
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xemphimxxxviet.com:8080
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xemphimxxxviet.com:8880
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xemphimxxxviet.com:2052
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xemphimxxxviet.com:2082
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xemphimxxxviet.com:2086
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xemphimxxxviet.com:2095
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xemphimxxxviet.com:443
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xemphimxxxviet.com:2053
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xemphimxxxviet.com:2083
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xemphimxxxviet.com:2087
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xemphimxxxviet.com:2096
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xemphimxxxviet.com:8443
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www.xemphimxxxviet.com:80
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www.xemphimxxxviet.com:22
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www.xemphimxxxviet.com:8080
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www.xemphimxxxviet.com:8880
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www.xemphimxxxviet.com:2052
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www.xemphimxxxviet.com:2082
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bae4PioEzzgs
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delay
0
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install
true
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install_file
06op.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\ca2a0e44d9f4331c2a76b4b61809e2e26c0b76adf562059d98225d8790f43f2b.exe"C:\Users\Admin\AppData\Local\Temp\ca2a0e44d9f4331c2a76b4b61809e2e26c0b76adf562059d98225d8790f43f2b.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 "06op" /tr '"C:\Users\Admin\AppData\Roaming\06op.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 "06op" /tr '"C:\Users\Admin\AppData\Roaming\06op.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\tmpF3B2.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\06op.exe"C:\Users\Admin\AppData\Roaming\06op.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\06op.exe"C:\Users\Admin\AppData\Roaming\06op.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
tmpF3B2.tmp.bat
06op.exe
memory/2396-48-0x000001C581B70000-0x000001C581B90000-memory.dmp
memory/2396-50-0x000001C581E70000-0x000001C581F70000-memory.dmp
memory/2396-59-0x000001C581DF0000-0x000001C581E10000-memory.dmp
memory/2396-81-0x000001C594270000-0x000001C594290000-memory.dmp
memory/2396-29-0x000001C5801E0000-0x000001C5802E0000-memory.dmp
memory/3236-14-0x0000000074F10000-0x00000000756CC000-memory.dmp
memory/3236-12-0x0000000074F10000-0x00000000756CC000-memory.dmp
memory/4248-208-0x0000022DC0A80000-0x0000022DC0EB4000-memory.dmp
memory/5556-0-0x0000000075092000-0x0000000075093000-memory.dmp
memory/5556-8-0x0000000075080000-0x000000007583C000-memory.dmp
memory/5556-3-0x0000000004F10000-0x0000000004FAC000-memory.dmp
memory/5556-2-0x0000000075080000-0x000000007583C000-memory.dmp
memory/5556-1-0x00000000004A0000-0x00000000004B2000-memory.dmp