Analysis
- max time kernel
58s - max time network
62s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
17/04/2026, 19:43
General
- Target 1cb22ec29465db200812dbca3a97be0b258706173ab91bc6c4e99e8c646849d1.exe
- Size 67KB
- Sample260417-yff7saaz7x
- SHA256 1cb22ec29465db200812dbca3a97be0b258706173ab91bc6c4e99e8c646849d1
Malware Config
Extracted
-
asyncrat
-
0.5.7B
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MinecraftSborka
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8.tcp.ngrok.io:30397
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AsyncMutex_6SI8OkPnk
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delay
3
-
install
true
-
install_file
spoolsv.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\1cb22ec29465db200812dbca3a97be0b258706173ab91bc6c4e99e8c646849d1.exe"C:\Users\Admin\AppData\Local\Temp\1cb22ec29465db200812dbca3a97be0b258706173ab91bc6c4e99e8c646849d1.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 "spoolsv" /tr '"C:\Users\Admin\AppData\Roaming\spoolsv.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 "spoolsv" /tr '"C:\Users\Admin\AppData\Roaming\spoolsv.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\tmp2C0D.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\spoolsv.exe"C:\Users\Admin\AppData\Roaming\spoolsv.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\spoolsv.exe"C:\Users\Admin\AppData\Roaming\spoolsv.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmp2C0D.tmp.bat
spoolsv.exe
memory/2348-0-0x0000000000140000-0x0000000000152000-memory.dmp
memory/2348-1-0x0000000005120000-0x0000000005130000-memory.dmp
memory/2348-2-0x0000000005130000-0x00000000051CC000-memory.dmp
memory/2348-7-0x0000000004A30000-0x0000000004FE3000-memory.dmp
memory/3940-14-0x00000000057A0000-0x0000000005D53000-memory.dmp
memory/4920-13-0x0000000004830000-0x0000000004DE3000-memory.dmp