Analysis
- max time kernel
146s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
05/06/2024, 01:10
General
- Target f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.exe
- Size 6.1MB
- Sample240605-bjtkysad78
- SHA256 f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0
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\f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.exe"C:\Users\Admin\AppData\Local\Temp\f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-1V5RI.tmp\f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.tmp"C:\Users\Admin\AppData\Local\Temp\is-1V5RI.tmp\f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.tmp" /SL5="$4020C,6111921,54272,C:\Users\Admin\AppData\Local\Temp\f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Amplifier\audioamplifier32.exe"C:\Users\Admin\AppData\Local\Free Audio Amplifier\audioamplifier32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Amplifier\audioamplifier32.exe"C:\Users\Admin\AppData\Local\Free Audio Amplifier\audioamplifier32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audioamplifier32.exe
f1d8ff1d05e8ac6625b5646eb38f83e15aa67a2333b118b8f20df75d9284d3a0.tmp
_iscrypt.dll
memory/1268-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1268-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2288-65-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2288-59-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2288-60-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2288-63-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-74-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-93-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-117-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-114-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-71-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-110-0x0000000002AC0000-0x0000000002B62000-memory.dmp
memory/2440-77-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-80-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-83-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-86-0x0000000002AC0000-0x0000000002B62000-memory.dmp
memory/2440-90-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-68-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-96-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-99-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-102-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-105-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-108-0x0000000000400000-0x0000000000872000-memory.dmp
memory/2440-109-0x0000000002AC0000-0x0000000002B62000-memory.dmp
memory/3844-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3844-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3844-69-0x0000000000400000-0x0000000000414000-memory.dmp