Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100380

MacLeod's description:

Genre: Horror
Length: 2:12
Instruments: Synths

Edgy-sounding synths with several pulsing band-pass sweeps. 037
ISRC: US-UAN-11-00380
Dark, Eerie, Suspenseful, Unnerving 2007