Analysis
- max time kernel
147s - max time network
157s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
24/06/2024, 22:48
General
- Target fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe
- Size 4.8MB
- Sample240624-2rb9rayhrm
- SHA256 fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e
Malware Config
Extracted
-
socks5systemz
-
cetdwgb.net
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 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\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"C:\Users\Admin\AppData\Local\Temp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-I73S1.tmp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp"C:\Users\Admin\AppData\Local\Temp\is-I73S1.tmp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp" /SL5="$40220,4738594,54272,C:\Users\Admin\AppData\Local\Temp\fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fa18cb656c819bbbb3e28361d163228833fcaec39a173fb1d7a79559f3ce0b7e.tmp
_iscrypt.dll
winypux32.exe
memory/2328-91-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-76-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-117-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-114-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-111-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-108-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-105-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-67-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-69-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-102-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-99-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-72-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-75-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-96-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-79-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-82-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-85-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2328-88-0x00000000009E0000-0x0000000000A82000-memory.dmp
memory/3272-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3272-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4308-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4308-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4308-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4676-65-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/4676-63-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/4676-60-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/4676-59-0x0000000000400000-0x00000000006C8000-memory.dmp