According to the Israeli Scorpions Field Guide, deathstalkers can have also pale metasomal segment V, so a black one isn't a sure identification sign although it is very common among deathstalkers. The characteristic of the Israeli deathstalker are 5 ridges along its back. The species of deathstalker in the Negev (and Israel) is Leiurus hebraeus.
I haven't found an official reference, just a mention that the metasomal segment V can be pale in some adults.
Perhaps after molting the colour is different?
Also, dont know if it is Leiurus quinquestriatus, L. hebraeus, or L. abdullahbayrami
I see picture with the same pale coloration at sciencedirect.com/topics/agricultural-and-biological-sciences/…
It is a Barn Funnel Weaver (Tegenaria domestica), In Europe it is known as the domestic house spider.
Here's some photos of this species to prove the similarities:
What caught my eye in particular that made it more clear that it was this species was the color patterns on the abdomen and cephalothorax, the size you mentioned, the shape of the feelers as well ...