Analysis
- max time kernel
60s - max time network
61s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
26/08/2026, 19:41
General
- Target 77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0.exe
- Size 32KB
- Sample260826-yeeybsfa74
- SHA256 77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0
Malware Config
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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 21 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0.exe"C:\Users\Admin\AppData\Local\Temp\77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- 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 vssadmin delete shadows /all /quiet2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\AppData\svchost.exe"' & exit2⤵
- Executes a command shell one-liner
- 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 "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\AppData\svchost.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0.exeC:\Users\Admin\AppData\Local\Temp\77b864752e88e4031c9801cff0eb0d433a9459747862c77fd23b51966a729fa0.exe1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
memory/4260-0-0x0000000000940000-0x000000000094E000-memory.dmp
memory/4260-1-0x0000000005210000-0x0000000005220000-memory.dmp
memory/4260-2-0x0000000005210000-0x0000000005220000-memory.dmp
memory/4260-3-0x0000000005F10000-0x00000000064B4000-memory.dmp
memory/4260-15-0x0000000007920000-0x00000000079BC000-memory.dmp
memory/4996-16-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/4996-17-0x00000000053B0000-0x00000000053C0000-memory.dmp