Answer: Unfortunately, the resolution of the photo is a little blurry but it could well be a Haworthia (or related succulent.) You can check some other photos of Haworthia to compare, as you will notice there is a huge variation in the different types.
I can't really see the spots in any detail because the photo is blurry. But generally speaking, those irregular shaped discolored areas do not look like any of the common pests such as mealy bugs.
They look more like an infection. It might be due to overwatering. The overwatering causes root rot which then causes the symptom of shriveling on the plant. Or, the disease can also move up into the stem and cause sunken areas.
Just for insurance, you might want to root a tip cutting or two from the healthy part of the plant. That way, if you lose the original, you will still have one of these in your collection.
You will find a lot of information on the care of haworthias at the following web site. The directions would also apply to other succulents, in case it is not a haworthia -- there are so many different succulents and they come in many shapes and forms. And, they have photos there of quite a few different haworthias.
You will probably have to cut and paste the complete url into your browser to make it work correctly.
You might also want to consult with your local county extension and see if they can diagnose the problem for you by looking at the plant. I hope this helps!
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