Help me the lab in "Live Memory Analysis - 1"

Q: A file is causing “letsdefend.io” to constantly request. By conducting memory analysis, find the parent process of this related process.
Answer Format: ***.***
I tried to check Process Hacker and found the process powershell.exe is targeted. But I tried answer as 4300, 4040 or 1828, it was still wrong.

For anyone who stuck at this, my hint is the answer is the process name, not pid.