Possibly fraudulent journal: cite or not to cite?

When I was doing literature review, I came across a paper published in a journal Research Journal of Applied Sciences, Engineering and Technology.

Now, I can't find this paper anywhere else, no citations, or anything. Just the pdf that I linked above. Also, the journal website looks shady as links don't work and it just does not have the make or look of an academic journal. Additionally, I couldn't even find anything about the authors.

What should be done in such cases? Should the paper be completely ignored or put in the review section?