Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
01/06/2026, 11:14
General
- Target f04c734891e649617a8bdaf402dac62e44c969a0beb8f03fad7ac85f0081a315.exe
- Size 45KB
- Sample260601-nb5dpshx8x
- SHA256 f04c734891e649617a8bdaf402dac62e44c969a0beb8f03fad7ac85f0081a315
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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fimsex.blog:443
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fimsex.blog:80
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fimsex.blog:7797
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fimsex.blog:8707
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fimsex.blog:6620
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www.fimsex.blog:443
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www.fimsex.blog:80
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www.fimsex.blog:7797
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www.fimsex.blog:8707
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www.fimsex.blog:6620
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trisis.fimsex.blog:443
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trisis.fimsex.blog:80
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trisis.fimsex.blog:7797
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trisis.fimsex.blog:8707
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trisis.fimsex.blog:6620
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nimda.fimsex.blog:443
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nimda.fimsex.blog:80
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nimda.fimsex.blog:7797
-
nimda.fimsex.blog:8707
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nimda.fimsex.blog:6620
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HJ5nDeEOtmxs
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delay
0
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install
true
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install_file
fqa7.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
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 23 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f04c734891e649617a8bdaf402dac62e44c969a0beb8f03fad7ac85f0081a315.exe"C:\Users\Admin\AppData\Local\Temp\f04c734891e649617a8bdaf402dac62e44c969a0beb8f03fad7ac85f0081a315.exe"1⤵
- Checks computer location settings
- 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 "fqa7" /tr '"C:\Users\Admin\AppData\Roaming\fqa7.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 "fqa7" /tr '"C:\Users\Admin\AppData\Roaming\fqa7.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\tmp6D7A.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\fqa7.exe"C:\Users\Admin\AppData\Roaming\fqa7.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\fqa7.exe"C:\Users\Admin\AppData\Roaming\fqa7.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
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Downloads
tmp6D7A.tmp.bat
fqa7.exe
memory/3516-0-0x00000000000C0000-0x00000000000D2000-memory.dmp
memory/3516-1-0x00007FFA90E90000-0x00007FFA91085000-memory.dmp
memory/3516-2-0x00000000049E0000-0x0000000004A7C000-memory.dmp
memory/3516-7-0x00007FFA90E90000-0x00007FFA91085000-memory.dmp
memory/5952-11-0x00007FFA90E90000-0x00007FFA91085000-memory.dmp
memory/5952-14-0x00007FFA90E90000-0x00007FFA91085000-memory.dmp