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Sounds like a fairly basic saw bass to me. From those VSTs, Sylenth is probably your best bet imo as it's more capable (in my experience) of creating warm, analoggy sounds. Aliens In Pyjamas sounds like it has 2 oscillators going, so if you're looking to recreate that one, put oscillator #2 one octave higher than #1.
I believe this tut will be of use to you. 
Here's a picture reference for you in case you don't want to keep checking the video...

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