Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
08/07/2026, 06:29
General
- Target 8fac8e24b1ecd462886c81048ac769827294b63bbdb909736f1c2191ddf1e702.exe
- Size 45KB
- Sample260708-g834kscs2w
- SHA256 8fac8e24b1ecd462886c81048ac769827294b63bbdb909736f1c2191ddf1e702
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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northspecialty.com:80
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northspecialty.com:22
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northspecialty.com:8080
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northspecialty.com:8880
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northspecialty.com:2052
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northspecialty.com:2082
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northspecialty.com:2086
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northspecialty.com:2095
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northspecialty.com:443
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northspecialty.com:2053
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northspecialty.com:2083
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northspecialty.com:2087
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northspecialty.com:2096
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northspecialty.com:8443
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www.northspecialty.com:80
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www.northspecialty.com:22
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www.northspecialty.com:8080
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www.northspecialty.com:8880
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www.northspecialty.com:2052
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www.northspecialty.com:2082
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aABMXxFQCbi4
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delay
0
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install
true
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install_file
f160z.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\8fac8e24b1ecd462886c81048ac769827294b63bbdb909736f1c2191ddf1e702.exe"C:\Users\Admin\AppData\Local\Temp\8fac8e24b1ecd462886c81048ac769827294b63bbdb909736f1c2191ddf1e702.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 "f160z" /tr '"C:\Users\Admin\AppData\Roaming\f160z.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 "f160z" /tr '"C:\Users\Admin\AppData\Roaming\f160z.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\tmp6577.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\f160z.exe"C:\Users\Admin\AppData\Roaming\f160z.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\f160z.exe"C:\Users\Admin\AppData\Roaming\f160z.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
tmp6577.tmp.bat
f160z.exe
memory/1664-12-0x0000000074050000-0x000000007480C000-memory.dmp
memory/1664-14-0x0000000074050000-0x000000007480C000-memory.dmp
memory/2132-221-0x00000241809E0000-0x0000024180C9C000-memory.dmp
memory/2132-204-0x00000241809E0000-0x0000024180C9C000-memory.dmp
memory/2488-203-0x000000000A820000-0x000000000AA7F000-memory.dmp
memory/2740-3-0x0000000005320000-0x00000000053BC000-memory.dmp
memory/2740-8-0x0000000074240000-0x00000000749FC000-memory.dmp
memory/2740-2-0x0000000074240000-0x00000000749FC000-memory.dmp
memory/2740-1-0x0000000000960000-0x0000000000972000-memory.dmp
memory/2740-0-0x0000000074252000-0x0000000074253000-memory.dmp
memory/3752-36-0x0000022C001E0000-0x0000022C002E0000-memory.dmp
memory/3752-43-0x0000022C01E60000-0x0000022C01F60000-memory.dmp
memory/3752-37-0x0000022C001E0000-0x0000022C002E0000-memory.dmp
memory/3752-57-0x0000022C01E00000-0x0000022C01E20000-memory.dmp
memory/3752-41-0x0000022C01A20000-0x0000022C01A40000-memory.dmp
memory/3752-81-0x0000022C14240000-0x0000022C14260000-memory.dmp
memory/3752-35-0x0000022C001E0000-0x0000022C002E0000-memory.dmp