Don't you guys think that someone are pumping this coin? yesterday 1dnr cost around 2USD ant went up in price to 5USD by just 4 hours
Very likely. It's the same like with Bitcoin. Price is rising because of speculation and nothing more.
Well tbh you could say that about every coin on market right now

More newcomers are looking for cheap altcoins with potential rises and DNR just happens to be one of those

Lets see what 2018 brings.