Analysis
- max time kernel
150s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-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
-
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
-
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
- 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⤵
- 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\tmpFD9A.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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-
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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
tmpFD9A.tmp.bat
v3.exe
memory/2060-7-0x0000000002250000-0x000000000225C000-memory.dmp
memory/2060-0-0x0000000000120000-0x0000000000132000-memory.dmp
memory/2060-8-0x0000000002260000-0x0000000002272000-memory.dmp
memory/2060-6-0x0000000000C50000-0x0000000000C81000-memory.dmp
memory/2060-1-0x000000001ADB0000-0x000000001ADC0000-memory.dmp
memory/3560-18-0x0000000001050000-0x0000000001081000-memory.dmp
memory/3560-20-0x0000000002750000-0x0000000002762000-memory.dmp
memory/3560-19-0x0000000002740000-0x000000000274C000-memory.dmp
memory/4476-14-0x0000000000FB0000-0x0000000000FE1000-memory.dmp
memory/4476-15-0x0000000001280000-0x000000000128C000-memory.dmp
memory/4476-16-0x0000000001290000-0x00000000012A2000-memory.dmp
memory/4792-12-0x000001612C940000-0x000001612C971000-memory.dmp