Analysis
- max time kernel
145s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240319-en - resource tags
- submitted
24/03/2024, 15:24
General
- Target b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.exe
- Size 2.0MB
- Sample240324-stjbeagb81
- SHA256 b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935
Malware Config
Extracted
-
socks5systemz
-
http://ayzahmh.ru/search/?q=67e28dd83e58f128495cab1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c9ec9c9c3d
Signatures
- Detect Socks5Systemz Payload 2 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.exe"C:\Users\Admin\AppData\Local\Temp\b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-VHI0D.tmp\b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.tmp"C:\Users\Admin\AppData\Local\Temp\is-VHI0D.tmp\b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.tmp" /SL5="$800DA,1783347,54272,C:\Users\Admin\AppData\Local\Temp\b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
sitefreeedition.exe
_iscrypt.dll
b828f827c6a16bd3c021fccb39d6da6225cf7f7ae901226caea8e1ccda3b2935.tmp
memory/580-77-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-67-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-97-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-94-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-90-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-87-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-84-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-45-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-47-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-81-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-78-0x0000000002330000-0x00000000023D2000-memory.dmp
memory/580-50-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-74-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-54-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-58-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-61-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-55-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-64-0x0000000000400000-0x0000000000601000-memory.dmp
memory/580-68-0x0000000002330000-0x00000000023D2000-memory.dmp
memory/2836-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2836-48-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2836-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5104-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/5104-51-0x0000000002340000-0x0000000002341000-memory.dmp
memory/5104-49-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/5804-43-0x0000000000400000-0x0000000000601000-memory.dmp
memory/5804-42-0x0000000000400000-0x0000000000601000-memory.dmp
memory/5804-39-0x0000000000400000-0x0000000000601000-memory.dmp
memory/5804-38-0x0000000000400000-0x0000000000601000-memory.dmp