If it has Malamute never let it off the leash outside.
They are renowned for going bush for days and not giving a rats about obedience.
My son had a Malamute Rotty cross , lovely dog but as wilful as ****.
Get him to the dog beach and the only way to get him back was lots of treats and I have two other friends who had purebreds that did the same.
The one you have probably ran away from some place a long way from your place.
At least it doesn't have the Alsatian droopy arse that breeders seem to love. He's got that great perky malamute tail.
Regards Philip A

