Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
04/06/2026, 03:19
General
- Target AsyncClient.exe
- Size 45KB
- Sample260604-dvdd8aaw3p
- SHA256 0bfc3434df62f94d581cb4719a78735a0c0d1c316b7296b9a0b6deebb7fe8311
Score
10/10
Malware Config
Extracted
Family
-
asyncrat
Version
-
0.5.8
Botnet
-
Default
C2
-
medianline.com.tw:6606
-
medianline.com.tw:7707
-
medianline.com.tw:8808
-
medianline.com.tw:443
-
medianline.com.tw:53
-
medianline.com.tw:22
Mutex
-
OFWpGUWwQg4F
Attributes
-
delay
3
-
install
false
-
install_folder
%AppData%
aes.plain
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes
-
C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"1⤵
- Unexpected DNS network traffic destination
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4792-0-0x0000000000F50000-0x0000000000F62000-memory.dmp
memory/4792-1-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/4792-2-0x0000000005A00000-0x0000000005A10000-memory.dmp