Analysis
- max time kernel
141s - max time network
128s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
24/03/2024, 14:17
General
- Target 29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.exe
- Size 2.2MB
- Sample240324-rl1eaadb59
- SHA256 29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07
Malware Config
Extracted
-
socks5systemz
-
http://ayexxiu.ru/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f571ea771795af8e05c646db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c8e69c9838
-
http://ayexxiu.ru/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12eab517aa5c96bd86ec908048865a8bbc896c58e713bc90c91836b5281fc235a925ed3e56d6bd974a95129070b615e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949833c4669415
Signatures
- Detect Socks5Systemz Payload 5 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\29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.exe"C:\Users\Admin\AppData\Local\Temp\29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-D8FVN.tmp\29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.tmp"C:\Users\Admin\AppData\Local\Temp\is-D8FVN.tmp\29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.tmp" /SL5="$6022E,1956185,54272,C:\Users\Admin\AppData\Local\Temp\29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.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
sitefreeedition.exe
_iscrypt.dll
29f50a3dc9731730314cf4ca73b54ae941f8f4c54b301167e91ace21c7f2ed07.tmp
memory/1124-79-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/1124-58-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-100-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-97-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-93-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/1124-92-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/1124-91-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-45-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-47-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-88-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-85-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-50-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-82-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-54-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-55-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-78-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-61-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-64-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-65-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/1124-69-0x0000000000400000-0x0000000000633000-memory.dmp
memory/1124-70-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/1124-75-0x0000000000400000-0x0000000000633000-memory.dmp
memory/2056-42-0x0000000000400000-0x0000000000633000-memory.dmp
memory/2056-43-0x0000000000400000-0x0000000000633000-memory.dmp
memory/2056-38-0x0000000000400000-0x0000000000633000-memory.dmp
memory/2056-39-0x0000000000400000-0x0000000000633000-memory.dmp
memory/3516-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3516-48-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3516-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3712-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3712-51-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3712-49-0x0000000000400000-0x00000000004B8000-memory.dmp