Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
16/04/2026, 19:20
General
- Target 5b42d8d90f32bed00df103bccbfa5293dcfb29d15ad7c363f66d831393f644ab.exe
- Size 48KB
- Sample260416-x156zacw21
- SHA256 5b42d8d90f32bed00df103bccbfa5293dcfb29d15ad7c363f66d831393f644ab
Malware Config
Extracted
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asyncrat
-
1.0.7
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Default
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marthasvineyardfitness.com:443
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marthasvineyardfitness.com:80
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marthasvineyardfitness.com:25
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marthasvineyardfitness.com:8443
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v2.marthasvineyardfitness.com:443
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v2.marthasvineyardfitness.com:80
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v2.marthasvineyardfitness.com:25
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v2.marthasvineyardfitness.com:8443
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v3.marthasvineyardfitness.com:443
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v3.marthasvineyardfitness.com:80
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v3.marthasvineyardfitness.com:25
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v3.marthasvineyardfitness.com:8443
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DcRatMutex_qwqdanchun
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delay
9
-
install
true
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install_file
v3.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).
- 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 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\5b42d8d90f32bed00df103bccbfa5293dcfb29d15ad7c363f66d831393f644ab.exe"C:\Users\Admin\AppData\Local\Temp\5b42d8d90f32bed00df103bccbfa5293dcfb29d15ad7c363f66d831393f644ab.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "v3" /tr '"C:\Users\Admin\AppData\Roaming\v3.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "v3" /tr '"C:\Users\Admin\AppData\Roaming\v3.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7C8E.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\v3.exe"C:\Users\Admin\AppData\Roaming\v3.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\v3.exe"C:\Users\Admin\AppData\Roaming\v3.exe"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmp7C8E.tmp.bat
v3.exe
memory/536-15-0x0000000000C70000-0x0000000000C78000-memory.dmp
memory/536-14-0x0000000000C30000-0x0000000000C3C000-memory.dmp
memory/536-13-0x0000000000B90000-0x0000000000BC0000-memory.dmp
memory/2376-18-0x0000000002290000-0x000000000229C000-memory.dmp
memory/2376-17-0x0000000000710000-0x0000000000740000-memory.dmp
memory/4812-11-0x000001D625620000-0x000001D625650000-memory.dmp
memory/5068-0-0x0000000000570000-0x0000000000582000-memory.dmp
memory/5068-1-0x000000001B180000-0x000000001B190000-memory.dmp
memory/5068-6-0x0000000000CD0000-0x0000000000D00000-memory.dmp
memory/5068-7-0x0000000002620000-0x000000000262C000-memory.dmp