In this Malay name, there is no surname or family name. The name Kamil Ayub is a patronymic, and the person should be referred to by their given name, Mustaffa. The word "bin" or "binti"/"binte" means 'son of' or 'daughter of', respectively.
Mustaffa Kamil Ayub is Malaysian politician from PKR Perak. He was the Vice-President of PKR.