Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
25/05/2026, 08:26
General
- Target AsyncClient.exe
- Size 45KB
- Sample260525-kcdetsfv9t
- SHA256 0dd9ee5d741cd36ee98a467c0b588788470fd2b4887c83110f87af9980b93959
Score
10/10
Malware Config
Extracted
Family
-
asyncrat
Version
-
0.5.8
Botnet
-
Default
C2
-
anvietsecurity.com:6606
-
anvietsecurity.com:7707
-
anvietsecurity.com:8808
-
anvietsecurity.com:443
-
anvietsecurity.com:53
-
anvietsecurity.com: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 4 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.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
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
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/1480-0-0x0000000000590000-0x00000000005A2000-memory.dmp
memory/1480-1-0x0000000005100000-0x0000000005110000-memory.dmp
memory/1480-2-0x0000000005100000-0x0000000005110000-memory.dmp