Aww Batkat I think he is just very, very frightened. I guess you will never know how he has been treated and handled and he may have had some very bad experiences.
Treat him like a brand new baby and start from the beginning with the scented tissue and very gradual handling till you gain his confidence. H e may never tame as well as a hamster you got as a baby but at least he will be loved and cared for with you and I am sure your experience will soon win him over. Time and patience Batkat and he will be fine. He may also be a bit cage aggressive so try taking him out in a ball or tube and take him away from the cage to a safe area like maybe the bath or bed.
All the best with him and looking forward to hearing about his progress.
Welcome to the forum too