You need to finish your bachelor's first. Taking an MBA without work experience is bullshit IMO.

If you're doing your degree in Malaysia then your chances of getting into IB is slim, but as someone already mentioned networking can do wonders.

With a few years of real work experience under your belt, you can apply and get accepted to a top b-school and increase your chances of getting an IB significantly. I personally know several people who went to Harvard, INSEAD, Columbia, Oxford b-schools straight from Malaysia. A top b-school is where their career services help you get a job. IB recruiters come and recruit on campus etc.

I also know people who went straight into IB soon after graduating their undergrad but far fewer of them.

Good luck and work hard

Yep definitely possible. They look more at the few years of work you did before rather than your undergraduate degree which is why that 3-8 years of work experience is crucial