Analysis
- max time kernel
144s - max time network
137s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 11:53
General
- Target 9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.exe
- Size 1.9MB
- Sample240330-n2a8jsfa23
- SHA256 9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf
Malware Config
Extracted
-
socks5systemz
-
http://aaxcapz.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe16c9e6939c3a
-
http://aaxcapz.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12eab517aa5c96bd86e8978f4f825a8bbc896c58e713bc90c91936b5281fc235a925ed3e56d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949d32c4699017
Signatures
- Detect Socks5Systemz Payload 4 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\9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.exe"C:\Users\Admin\AppData\Local\Temp\9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-110QU.tmp\9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.tmp"C:\Users\Admin\AppData\Local\Temp\is-110QU.tmp\9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.tmp" /SL5="$600DC,1601524,54272,C:\Users\Admin\AppData\Local\Temp\9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\CD Audio Converter\cdaudioconverter.exe"C:\Users\Admin\AppData\Local\CD Audio Converter\cdaudioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\CD Audio Converter\cdaudioconverter.exe"C:\Users\Admin\AppData\Local\CD Audio Converter\cdaudioconverter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
cdaudioconverter.exe
9e1fb20f9473053e3aa6e8b2cea9aa671e0043e79fb5852362fde3c3940504bf.tmp
_iscrypt.dll
memory/1816-46-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1816-6-0x0000000002440000-0x0000000002441000-memory.dmp
memory/1816-48-0x0000000002440000-0x0000000002441000-memory.dmp
memory/1932-75-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-66-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1932-44-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-97-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-94-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-47-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-90-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1932-51-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-52-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-55-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-58-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-61-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-64-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-89-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1932-72-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-88-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-76-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1932-79-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-82-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1932-85-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2592-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2592-45-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3100-41-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3100-37-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3100-38-0x0000000000400000-0x00000000005F5000-memory.dmp