What is the "cache1.bin" on Windows 11 ?

Question

On Windows 11, My Endpoint security (Cortex XDR) show alert like this

"Lsass.exe does not normally create executables to disk. This activity was seen as part of several exploits, like EternalBlue and DoublePulsar, used during the WannaCry attacks"

I've found that the process try to write file on harddisk as ,

Username: NT AUTHORITY\SYSTEM

Path: Type : File Write Path : C:\Users<my username>\AppData\Local\Microsoft\Windows\SFAP\cache1.bin

Please help me check the file "cache1.bin" whether malicious or not.

Thank you,

maxx