Changing Single Entry Evisa to Multple Entry Visa on arrival

Dear ALL

I am a Pakistani National and I  am traveling to Malaysia next week but I have single Entry E-Visa(Malaysian) . My Return Tickets are from Malaysia. Now that I have Thailand Visa as well I really wanna visit that place too but my Malaysian Visa does not allow me to exit and re-enter back to Malaysia !

Is it possible that Once I land Malaysia I apply for a Re-Entry visa so that I can go to Thailand and get back to Malaysia to catch my return Flight ?

Thanks
Hasan

any one ?