Analysis
- max time kernel
147s - max time network
156s - platform
windows11-21h2_x64 - resource
win11-20240319-en - resource tags
- submitted
31/03/2024, 14:20
General
- Target fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.exe
- Size 1.8MB
- Sample240331-rnw5msdh68
- SHA256 fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c
Malware Config
Extracted
-
socks5systemz
-
http://bglkulh.com/search/?q=67e28dd83e58f128495cab1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c646db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c9eb9c9832
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\fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.exe"C:\Users\Admin\AppData\Local\Temp\fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-LIBEI.tmp\fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.tmp"C:\Users\Admin\AppData\Local\Temp\is-LIBEI.tmp\fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.tmp" /SL5="$E0240,1511824,54272,C:\Users\Admin\AppData\Local\Temp\fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe"C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe"C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audiorecordplugin.exe
_iscrypt.dll
fad1b03613714de6babf54c7ef1b87a5134ed19699d8eb0844e3d7249056ce8c.tmp
memory/1420-46-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1420-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2556-68-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2556-62-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-96-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-93-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-45-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-89-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-86-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-48-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-83-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-52-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-53-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-56-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-59-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-80-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-65-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2556-66-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-77-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2556-73-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/2556-76-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/5072-38-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/5072-37-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/5072-41-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/5072-42-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/5748-6-0x0000000002440000-0x0000000002441000-memory.dmp
memory/5748-49-0x0000000002440000-0x0000000002441000-memory.dmp
memory/5748-47-0x0000000000400000-0x00000000004B8000-memory.dmp