There is nothing strange. This is definitely a withdrawal, so you should not consider it suspicious.
it is not this transaction that is suspicious. it is the fact that there is an amount of btc getting sent from one address to another in a very short period of time. why would someone send 40 btc to 3 different addresses within a minute?
There's a lot of possibilities but I don't find it strange at all. Like others have pointed out it could be just a exchanges wallet when someone makes a withdrawal or could be a online casino's when players cashing out. Or crypto holders who wants to separate his coins to 3 different wallets.