Analysis
- max time kernel
146s - max time network
156s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
30/05/2024, 22:25
General
- Target efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.exe
- Size 5.5MB
- Sample240530-2b7eysbf8s
- SHA256 efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 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\efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.exe"C:\Users\Admin\AppData\Local\Temp\efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-RH0KM.tmp\efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.tmp"C:\Users\Admin\AppData\Local\Temp\is-RH0KM.tmp\efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.tmp" /SL5="$40208,5552432,54272,C:\Users\Admin\AppData\Local\Temp\efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
5kplayer32.exe
_iscrypt.dll
_isdecmp.dll
efb45c44b94103d74d36fce390231dea9c0a001ca181f9cba1f267b3e22757d2.tmp
memory/864-77-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/864-22-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1076-66-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1076-65-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1076-68-0x0000000000400000-0x0000000000745000-memory.dmp
memory/1076-71-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4852-76-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4852-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4852-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4916-88-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-97-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-78-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-81-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-82-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-85-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-75-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-91-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-94-0x0000000000B40000-0x0000000000BE2000-memory.dmp
memory/4916-74-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-102-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-105-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-108-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-111-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-114-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-117-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-120-0x0000000000400000-0x0000000000745000-memory.dmp
memory/4916-123-0x0000000000400000-0x0000000000745000-memory.dmp