So, I happened to be listening to Passion/Sanctuary by Hikaru Utada (opening theme for Kingdom Hearts II) in reverse, and heard something familiar around the 4:05 mark. It really feels like I've heard it before, but the closest I've found yet is the "Wolf at Vespers" sample from Pandora's Toolbox (by Q Up Arts / Sonic Foundry). I'm not at all convinced that's the sample, but it sure seems like it could be a sample, maybe even by the same library producer (David Torn).
https://www.youtube.com/watch?v=jyeA4sAnGrs&t=4m05s
https://instaud.io/1sD7
If anyone happens to recognize it as well, please share!