Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
11/07/2026, 08:47
General
- Target e0c57f04cf8405af4727207fe1547e10b3711de771e9c9c1ce572458005cc097.exe
- Size 45KB
- Sample260711-kpyarsew4j
- SHA256 e0c57f04cf8405af4727207fe1547e10b3711de771e9c9c1ce572458005cc097
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
s.damsex.blog:80
-
s.damsex.blog:22
-
s.damsex.blog:8080
-
s.damsex.blog:8880
-
s.damsex.blog:2052
-
s.damsex.blog:2082
-
s.damsex.blog:2086
-
s.damsex.blog:2095
-
s.damsex.blog:443
-
s.damsex.blog:2053
-
s.damsex.blog:2083
-
s.damsex.blog:2087
-
s.damsex.blog:2096
-
s.damsex.blog:8443
-
www.s.damsex.blog:80
-
www.s.damsex.blog:22
-
www.s.damsex.blog:8080
-
www.s.damsex.blog:8880
-
www.s.damsex.blog:2052
-
www.s.damsex.blog:2082
-
JUb4oYnARJNH
-
delay
0
-
install
true
-
install_file
x3900g.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\e0c57f04cf8405af4727207fe1547e10b3711de771e9c9c1ce572458005cc097.exe"C:\Users\Admin\AppData\Local\Temp\e0c57f04cf8405af4727207fe1547e10b3711de771e9c9c1ce572458005cc097.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 "x3900g" /tr '"C:\Users\Admin\AppData\Roaming\x3900g.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "x3900g" /tr '"C:\Users\Admin\AppData\Roaming\x3900g.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\tmp4443.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\x3900g.exe"C:\Users\Admin\AppData\Roaming\x3900g.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Roaming\x3900g.exe"C:\Users\Admin\AppData\Roaming\x3900g.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
tmp4443.tmp.bat
x3900g.exe
memory/3476-12-0x00000000744E0000-0x0000000074C9C000-memory.dmp
memory/3476-14-0x00000000744E0000-0x0000000074C9C000-memory.dmp
memory/3984-0-0x0000000074662000-0x0000000074663000-memory.dmp
memory/3984-1-0x0000000000DD0000-0x0000000000DE2000-memory.dmp
memory/3984-2-0x0000000074650000-0x0000000074E0C000-memory.dmp
memory/3984-3-0x0000000005980000-0x0000000005A1C000-memory.dmp
memory/3984-8-0x0000000074650000-0x0000000074E0C000-memory.dmp