Analysis
- max time kernel
146s - max time network
137s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
25/03/2024, 01:00
General
- Target 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe
- Size 1.9MB
- Sample240325-bc51eabf92
- SHA256 13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d
Malware Config
Extracted
-
socks5systemz
-
http://buzojyd.com/search/?q=67e28dd83f0fa47b1407ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978a271ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfd19c5ec94
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 6 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-FT5JC.tmp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp"C:\Users\Admin\AppData\Local\Temp\is-FT5JC.tmp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp" /SL5="$4001C,1676256,54272,C:\Users\Admin\AppData\Local\Temp\13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
markdownpad32.exe
_iscrypt.dll
_isdecmp.dll
_shfoldr.dll
13054d2dd86e9d9b7920a0172e9b40ee0409f4e21412ace7ce16160394b6e87d.tmp
memory/364-58-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/364-8-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/364-46-0x00000000038D0000-0x0000000003A9A000-memory.dmp
memory/364-61-0x00000000038D0000-0x0000000003A9A000-memory.dmp
memory/364-60-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1296-85-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-91-0x00000000021A0000-0x0000000002242000-memory.dmp
memory/1296-54-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-108-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-57-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-105-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-59-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-101-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-98-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-64-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-67-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-68-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-71-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-74-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-77-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-78-0x00000000021A0000-0x0000000002242000-memory.dmp
memory/1296-82-0x00000000021A0000-0x0000000002242000-memory.dmp
memory/1296-95-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-88-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/1296-92-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2056-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2056-56-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2844-52-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2844-47-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2844-49-0x0000000000400000-0x00000000005CA000-memory.dmp
memory/2844-48-0x0000000000400000-0x00000000005CA000-memory.dmp