Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240802-en - resource tags
- submitted
09/08/2024, 23:16
General
- Target 4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.exe
- Size 3.5MB
- Sample240809-29kc3sthll
- SHA256 4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57
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.
- 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\4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.exe"C:\Users\Admin\AppData\Local\Temp\4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-N9RO8.tmp\4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.tmp"C:\Users\Admin\AppData\Local\Temp\is-N9RO8.tmp\4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.tmp" /SL5="$50258,3439136,54272,C:\Users\Admin\AppData\Local\Temp\4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.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
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Downloads
bekkysoftuniversalplayer32_64.exe
_iscrypt.dll
4fee8b42d31375766202f9750cafe60267c323c4bad48ac34adae7d4d7122b57.tmp
memory/1072-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1072-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1072-61-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1652-62-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/1652-16-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2864-52-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/2864-56-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/2864-53-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/2864-57-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-66-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-89-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-60-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-69-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-72-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-75-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-78-0x0000000000B60000-0x0000000000C02000-memory.dmp
memory/4128-80-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-86-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-63-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-92-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-95-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-98-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-101-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-102-0x0000000000B60000-0x0000000000C02000-memory.dmp
memory/4128-103-0x0000000000B60000-0x0000000000C02000-memory.dmp
memory/4128-107-0x0000000000400000-0x00000000007DF000-memory.dmp
memory/4128-110-0x0000000000400000-0x00000000007DF000-memory.dmp