A day of DNS queries from one office network. Nothing here is flagged, nothing is known-bad, and searching for something suspicious will not find it.
Do not search. Count. Every hostname below appears many times except one, which appears once, from a single workstation, at an hour when nobody was working.
Submit that hostname as the flag: skrd{hostname}.
Every name ends in .example, which is reserved and cannot be registered. Nothing here refers to a real domain or a real organisation.