Analysis
- max time kernel
58s - max time network
58s - platform
windows11-21h2_x64 - resource
win11-20260130-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
-
MinecraftSborka
-
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
- 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 19 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⤵
- 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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-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2A18.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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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
tmp2A18.tmp.bat
spoolsv.exe
memory/4192-12-0x0000000000DD0000-0x0000000000E8B000-memory.dmp
memory/4368-7-0x00000000017A0000-0x00000000017C5000-memory.dmp
memory/4368-0-0x0000000000DC0000-0x0000000000DD2000-memory.dmp
memory/4368-8-0x0000000005840000-0x0000000005E42000-memory.dmp
memory/4368-2-0x0000000005EF0000-0x0000000005F8C000-memory.dmp
memory/4368-1-0x0000000005F90000-0x0000000005FA0000-memory.dmp
memory/4744-17-0x0000000001250000-0x0000000001275000-memory.dmp
memory/4744-18-0x00000000053D0000-0x00000000059D2000-memory.dmp
memory/4744-21-0x0000000005A20000-0x0000000005A27000-memory.dmp
memory/5428-15-0x0000000001440000-0x0000000001465000-memory.dmp
memory/5428-16-0x00000000055C0000-0x0000000005BC2000-memory.dmp