Analysis
- max time kernel
146s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 10:32
General
- Target 75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.exe
- Size 1.9MB
- Sample240330-mk2thadd4y
- SHA256 75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1
Malware Config
Extracted
-
socks5systemz
-
http://ejexfei.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c646db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe16c9eb929333
-
http://ejexfei.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef96834e875a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b615e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949d32c9689f1e
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\75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.exe"C:\Users\Admin\AppData\Local\Temp\75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-PHIG7.tmp\75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.tmp"C:\Users\Admin\AppData\Local\Temp\is-PHIG7.tmp\75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.tmp" /SL5="$40238,1583000,54272,C:\Users\Admin\AppData\Local\Temp\75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.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
_iscrypt.dll
75ad777a8aa1b275cb97f049310b34b2de79179247245a88ed06354c6f9b2bf1.tmp
memory/1228-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1228-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1228-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1904-43-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1904-39-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1904-42-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/1904-38-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3404-50-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3404-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3404-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/4380-54-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-77-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-53-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-46-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-57-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-60-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-63-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-64-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4380-68-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-69-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4380-74-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-49-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-78-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4380-81-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-84-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-87-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-90-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-91-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4380-92-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4380-96-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/4380-99-0x0000000000400000-0x00000000005F5000-memory.dmp