Thalang Police were called to the store In Moo 4, Pa Khlok, at 6:30pm on Saturday (June 22).
Officers arrived to find the ATM with significant damage to its screen, showing clear signs of being smashed.
Preliminary investigations revealed that the damage occurred around 3pm earlier that day.
Store employees were interviewed, and nearby CCTV footage is currently being reviewed to identify and track down the perpetrator.
Police have urged anyone with information to come forward, in the hope of catching the perpetrator and uncovering the reason behind the act.