Analysis
- max time kernel
142s - max time network
129s - platform
windows11-21h2_x64 - resource
win11-20240419-en - resource tags
- submitted
28/05/2024, 22:00
General
- Target 4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.exe
- Size 4.7MB
- Sample240528-1wpj7sfc33
- SHA256 4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885
Malware Config
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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.exe"C:\Users\Admin\AppData\Local\Temp\4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-1J4PN.tmp\4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.tmp"C:\Users\Admin\AppData\Local\Temp\is-1J4PN.tmp\4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.tmp" /SL5="$60056,4654295,54272,C:\Users\Admin\AppData\Local\Temp\4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
stereotool32.exe
4335ce0979cd9e395385fe936a6b3dbcf632908280c3e54755b32cc246789885.tmp
_iscrypt.dll
memory/964-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/964-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2200-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2200-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2200-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2632-102-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-85-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-68-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-69-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-120-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-117-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-72-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-75-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-76-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-79-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-82-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-113-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2632-88-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2632-90-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-96-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-99-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-112-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2632-105-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-108-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2632-111-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2936-59-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2936-64-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2936-60-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/2936-65-0x0000000000400000-0x00000000006D8000-memory.dmp