To generate this pattern I loaded a basic TR-808 kick drum sample into one of the most simple Pluggo VSTs called Flying Waves. The controls in Flying Waves are a set of movable cross hairs on a grid, volume and an external sample button. Moving the cross hairs up and down increases and lowers the pitch of the sample while left and right lowers and increases the volume respectively. With a sine wave you can get Theremin like sounds.
After loading in the 808 kick I resampled myself adjusting the cross hairs for a few minutes until I had some interesting patterns to work with. After that I cut and pasted a bar that was a good representation of what I was going for, then I looped it four times and rendered the results.
Flying 808s
There are so many ways to use processing to make scary sounds that it’s almost too easy. The classic reverse reverb in the original Poltergeist comes to mind. This example is a recording of a conversation with a colleague during a lunch break at a busy sandwich joint. It’s been reversed, pitched down significantly, run through a low pass filter, slowly phased, filter delayed and run through a long reverb. All this processing has diffused the voices into a hellish ambient drone. 
The weather was unseasonably warm in Minneapolis today. As I write this it is nineteen degrees centigrade (sixty six degrees fahrenheit) at 7:11pm on a usual chilly late October evening. Days like this require mates on bikes to meet outdoors to drink beer at undisclosed locations near bodies of water. On my way to such a location I was held up by a train and decided to record it. 
This recording of the falls located on Shingle creek at Webber parkway was made last weekend on the way back from the 