Analysis
- max time kernel
148s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
14/07/2026, 13:31
General
- Target beb575a8d7fa60d0b7e1880be1ac062a4f37813c2b49bdf2db73232c73fa5f32.exe
- Size 45KB
- Sample260714-qskfzagw21
- SHA256 beb575a8d7fa60d0b7e1880be1ac062a4f37813c2b49bdf2db73232c73fa5f32
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
lephimsexviet.com:80
-
lephimsexviet.com:22
-
lephimsexviet.com:8080
-
lephimsexviet.com:8880
-
lephimsexviet.com:2052
-
lephimsexviet.com:2082
-
lephimsexviet.com:2086
-
lephimsexviet.com:2095
-
lephimsexviet.com:443
-
lephimsexviet.com:2053
-
lephimsexviet.com:2083
-
lephimsexviet.com:2087
-
lephimsexviet.com:2096
-
lephimsexviet.com:8443
-
www.lephimsexviet.com:80
-
www.lephimsexviet.com:22
-
www.lephimsexviet.com:8080
-
www.lephimsexviet.com:8880
-
www.lephimsexviet.com:2052
-
www.lephimsexviet.com:2082
-
LyRY7QLmYkXd
-
delay
0
-
install
true
-
install_file
y470t0.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).
- 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 29 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\beb575a8d7fa60d0b7e1880be1ac062a4f37813c2b49bdf2db73232c73fa5f32.exe"C:\Users\Admin\AppData\Local\Temp\beb575a8d7fa60d0b7e1880be1ac062a4f37813c2b49bdf2db73232c73fa5f32.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 "y470t0" /tr '"C:\Users\Admin\AppData\Roaming\y470t0.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "y470t0" /tr '"C:\Users\Admin\AppData\Roaming\y470t0.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\tmp748A.tmp.bat""2⤵
- 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\y470t0.exe"C:\Users\Admin\AppData\Roaming\y470t0.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Roaming\y470t0.exe"C:\Users\Admin\AppData\Roaming\y470t0.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
tmp748A.tmp.bat
y470t0.exe
memory/4340-0-0x00000000749B2000-0x00000000749B3000-memory.dmp
memory/4340-1-0x0000000000C10000-0x0000000000C22000-memory.dmp
memory/4340-2-0x00000000749A0000-0x000000007515C000-memory.dmp
memory/4340-3-0x00000000056C0000-0x000000000575C000-memory.dmp
memory/4340-8-0x00000000749A0000-0x000000007515C000-memory.dmp
memory/4588-12-0x0000000074800000-0x0000000074FBC000-memory.dmp
memory/4588-14-0x0000000074800000-0x0000000074FBC000-memory.dmp