Dark floating object in the sky over Brasil, 1 Jan 2021

Frederico Müller has posted a video showing a dark object high in the clouds over Pouso Alegre-MG, Brasil on 1 January 2021. 

 

He says "Strange dark object at high altitude, filmed at 5:50 pm on 01.01.2021, in the Alto Ibirá neighborhood, in the municipality of Pouso Alegre-MG. The object was stopped for a long time and then followed an irregular trajectory until it disappeared into the clouds."

The object is too far way to get a good view. It behaves just like a balloon would, so we can assume that is what it is.