I am living in a high rise and there are always funny noises. One time it was kids jumping up and down, running here and there. It turned out there was a family with young kids 3 floors above us. It sounded like they were right on top.

Anyway strange noises are not peculiar to Malaysian buildings, Singapore papers wrote a lot of that too. Water hammering is another. It was driving me crazy. There was one particular house that caused the noise. I could hear water flowing then followed by the noise. It is gone now.

Sorry I cannot help you solve your problem, but one thing you can consider, it is not some restless spirit, or your house is haunted. Just mechanical phenomena. But even if it is some hantu, and many people experienced it, it will go away. Just kidding. I am quite sure it's the stresses and strains in the structure, uneven water pressures.
Enjoy your new apartment.