*IntegrityLevel
Privileged
High
Normal
Medium
Explanation
Each process has an integrity level: Low, Medium, High or System. A process with a lower integrity level cannot write to an object with a higher integrity level. This stops attacks such as dll injection without privilege escalation. By default, non-elevated processes run with medium integrity level, hence why normal execution of wordpad.exe resulted in medium integrity level. On the other hand, privileged execution will result in high integrity level because we ran as administrator.