Analysis
- max time kernel
141s - max time network
125s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 10:58
General
- Target 4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.exe
- Size 1.9MB
- Sample240330-m2yheaed38
- SHA256 4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d
Malware Config
Extracted
-
socks5systemz
-
http://bnoekju.com/search/?q=67e28dd83d0ef479150af9197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978a571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe16c9e9969c3a
Signatures
- Detect Socks5Systemz Payload 3 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\4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.exe"C:\Users\Admin\AppData\Local\Temp\4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IIMHM.tmp\4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.tmp"C:\Users\Admin\AppData\Local\Temp\is-IIMHM.tmp\4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.tmp" /SL5="$4023E,1609158,54272,C:\Users\Admin\AppData\Local\Temp\4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.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
4b815c7f9981ace26270b975eea444bcac3d363abcbb3a08ffcb724571338e3d.tmp
memory/2292-77-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-78-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/2292-97-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-94-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-90-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-87-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-84-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-46-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-81-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-63-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-49-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-74-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-53-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-54-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-60-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-69-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/2292-57-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/2292-64-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/2292-68-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3040-43-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3040-42-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3040-39-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3040-38-0x0000000000400000-0x00000000005F5000-memory.dmp
memory/3176-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3176-50-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3176-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/5056-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5056-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5056-2-0x0000000000400000-0x0000000000414000-memory.dmp