No I don't think so. you have to leave the country and enter again so the visa can be renewed. you can go to Thailand or Singapore and it is quite easy to do so.
Get accepted for enrollment by a Malaysian university. They do the rest of the paperwork for you, and finally when they have finished you visit a Malay Consulate/Embassy to get the stamp and sticker...
Thai passport holders can enter and stay in Malaysia for 30 days without a visa.
For a visa, the requestor needs to submit the relevant forms at the Embassy of Malaysia.