Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
05/09/2026, 12:34
General
- Target fcf00df0a7bc707764ed3a987e951c74f56f91cac4197df2870c916a014d96a3.exe
- Size 45KB
- Sample260905-pr7pfa1yev
- SHA256 fcf00df0a7bc707764ed3a987e951c74f56f91cac4197df2870c916a014d96a3
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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top-sexviet.blog:80
-
top-sexviet.blog:22
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top-sexviet.blog:8080
-
top-sexviet.blog:8880
-
top-sexviet.blog:2052
-
top-sexviet.blog:2082
-
top-sexviet.blog:2086
-
top-sexviet.blog:2095
-
top-sexviet.blog:443
-
top-sexviet.blog:2053
-
top-sexviet.blog:2083
-
top-sexviet.blog:2087
-
top-sexviet.blog:2096
-
top-sexviet.blog:8443
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www.top-sexviet.blog:80
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www.top-sexviet.blog:22
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www.top-sexviet.blog:8080
-
www.top-sexviet.blog:8880
-
www.top-sexviet.blog:2052
-
www.top-sexviet.blog:2082
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KQY1GFy1CrQ9
-
delay
0
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install
true
-
install_file
ltml8a.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
- Outbound SSH connection to public host 2 TTPs 3 IoCs
SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.
- 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
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C:\Users\Admin\AppData\Local\Temp\fcf00df0a7bc707764ed3a987e951c74f56f91cac4197df2870c916a014d96a3.exe"C:\Users\Admin\AppData\Local\Temp\fcf00df0a7bc707764ed3a987e951c74f56f91cac4197df2870c916a014d96a3.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 "ltml8a" /tr '"C:\Users\Admin\AppData\Roaming\ltml8a.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 "ltml8a" /tr '"C:\Users\Admin\AppData\Roaming\ltml8a.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\tmp7A76.tmp.bat""2⤵
- Executes a command shell one-liner
- 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\ltml8a.exe"C:\Users\Admin\AppData\Roaming\ltml8a.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\ltml8a.exe"C:\Users\Admin\AppData\Roaming\ltml8a.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
tmp7A76.tmp.bat
ltml8a.exe
memory/236-12-0x0000000074F60000-0x000000007571C000-memory.dmp
memory/236-14-0x0000000074F60000-0x000000007571C000-memory.dmp
memory/1244-0-0x0000000074F72000-0x0000000074F73000-memory.dmp
memory/1244-1-0x0000000000FA0000-0x0000000000FB2000-memory.dmp
memory/1244-2-0x0000000074F60000-0x000000007571C000-memory.dmp
memory/1244-3-0x0000000005A20000-0x0000000005ABC000-memory.dmp
memory/1244-9-0x0000000074F60000-0x000000007571C000-memory.dmp