Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
23/06/2024, 21:34
General
- Target ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe
- Size 5.4MB
- Sample240623-1e5vvsshka
- SHA256 ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20
Malware Config
Extracted
-
socks5systemz
-
diembvi.info
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Unexpected DNS network traffic destination 3 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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"C:\Users\Admin\AppData\Local\Temp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-RMPRI.tmp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp"C:\Users\Admin\AppData\Local\Temp\is-RMPRI.tmp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp" /SL5="$90060,5404451,54272,C:\Users\Admin\AppData\Local\Temp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundrecorder32_64.exe
ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp
_iscrypt.dll
_isdecmp.dll
memory/1328-76-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1328-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1676-99-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-102-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-120-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-117-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-114-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-73-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-111-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-108-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-77-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-80-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-83-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-86-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-89-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-92-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1676-96-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1676-105-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2188-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2188-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2188-75-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4744-65-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/4744-71-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/4744-67-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/4744-66-0x0000000000400000-0x00000000006D4000-memory.dmp