Analysis
- max time kernel
12s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
03/08/2026, 17:17
General
- Target a7282565be074955e83ba863e78a5ce6769dd0834a2ab113bb25a7c8aeb34afb.exe
- Size 45KB
- Sample260803-vt32xsgj21
- SHA256 a7282565be074955e83ba863e78a5ce6769dd0834a2ab113bb25a7c8aeb34afb
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
slot33.me:443
-
slot33.me:8443
-
slot33.me:25
-
slot33.me:80
-
1E7lN5ZqNvvm
-
delay
3
-
install
true
-
install_file
fly88.exe
-
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).
- 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 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 31 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a7282565be074955e83ba863e78a5ce6769dd0834a2ab113bb25a7c8aeb34afb.exe"C:\Users\Admin\AppData\Local\Temp\a7282565be074955e83ba863e78a5ce6769dd0834a2ab113bb25a7c8aeb34afb.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fly88" /tr '"C:\Users\Admin\AppData\Roaming\fly88.exe"' & exit2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "fly88" /tr '"C:\Users\Admin\AppData\Roaming\fly88.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7A95.tmp.bat""2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
-
-
C:\Users\Admin\AppData\Roaming\fly88.exe"C:\Users\Admin\AppData\Roaming\fly88.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Roaming\fly88.exe"C:\Users\Admin\AppData\Roaming\fly88.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
tmp7A95.tmp.bat
fly88.exe
memory/1556-0-0x0000000074BA2000-0x0000000074BA3000-memory.dmp
memory/1556-1-0x00000000009A0000-0x00000000009B2000-memory.dmp
memory/1556-2-0x0000000074B90000-0x000000007534C000-memory.dmp
memory/1556-3-0x00000000053D0000-0x000000000546C000-memory.dmp
memory/1556-8-0x0000000074B90000-0x000000007534C000-memory.dmp
memory/5996-12-0x0000000074B30000-0x00000000752EC000-memory.dmp
memory/5996-14-0x0000000074B30000-0x00000000752EC000-memory.dmp