Found it!

I started a short winter vacation today and came to my hometown for my dads funeral which is tomorrow. After sitting in a car for couple of hours I was in need of some physical movement and did a geoaching walk in the forests nearby. This tiny geocache was quite hard to find in the middle of spruces. I tried to search this first time about month ago, but then all branches were covered with thick snow and it was already dark, so no wonder I didn't get eye contact to it.