GEORGE TOWN - At least six shots were fired at a businessman's bungalow in Pulau Tikus, a suburb in Penang on early Thursday.
The man had earlier lodged a police report, claiming that he received an extortion letter together with six bullets, police said.
His 29-year-old son, his wife and their domestic worker were at home when a gunman struck at around 1.15am.
No one was injured in the shooting, which came amid a spate of gun violence in Malaysia.
"Based on the CCTV footages, the gunman fired the shots randomly outside the house," police said, adding that the owner had a shock after discovering fragments of broken window panels and bullet marks on them.
The owner, who is now abroad, told police that he received a text message in Chinese demanding for money to be deposited into a local bank account.
"We have since frozen the telephone numbers and the bank account," police said, adding that the case is being investigated for criminal intimidation.