Kuntilanak is a well-known ghost figure in Indonesian and Malay folklore, so this sound is recognized online even without a single fixed source. On social media and chat apps, creators use Kuntilanak audio for horror edits, prank recordings and supernatural joke videos. Its popularity comes from how quickly the eerie vocal tone signals danger, especially to audiences familiar with regional ghost stories. The clip remains widely used because it delivers an instant scare without needing much setup or context.