Analysis
- max time kernel
141s - max time network
131s - platform
windows11-21h2_x64 - resource
win11-20240802-en - resource tags
- submitted
09/08/2024, 20:52
General
- Target b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.exe
- Size 3.7MB
- Sample240809-zn6yvasepe
- SHA256 b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf
Malware Config
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 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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.exe"C:\Users\Admin\AppData\Local\Temp\b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-GO02J.tmp\b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.tmp"C:\Users\Admin\AppData\Local\Temp\is-GO02J.tmp\b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.tmp" /SL5="$500E6,3616639,54272,C:\Users\Admin\AppData\Local\Temp\b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe"C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe"C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
bekkysoftuniversalplayer32_64.exe
_iscrypt.dll
b186b1270c704dd40cc374503d0e9628ebb678297dc503cd7e59080734cf7baf.tmp
memory/3124-61-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3124-10-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3976-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3976-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3976-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4120-52-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4120-54-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4120-56-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4120-55-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4668-65-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-78-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-59-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-68-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-71-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-74-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-75-0x0000000000A00000-0x0000000000AA2000-memory.dmp
memory/4668-62-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-84-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-87-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-90-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-93-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-96-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-99-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-103-0x0000000000400000-0x0000000000812000-memory.dmp
memory/4668-106-0x0000000000400000-0x0000000000812000-memory.dmp