Though the demo was short (as one might reasonably expect of a .1 alpha), and my knowledge of the wider SCP-verse has grown rusty and perhaps even outdated, near as far as I can tell you have captured and presented Mal0 faithfully in respect to its lore. I will certainly keep an eye on this one.
To be fair, the original Mal0 article is fairly short, with the 24-/48-/72-/90-hour exposure behavior changes and the "To date, no apparent hostile activity has been reported regarding SCP-1471-A." statement being the main descriptions of what the Mal0 entities actually do when they get close to you, so it leaves a LOT of room for interpretation, even with the hidden "Capone" article describing how it affected the lives of two siblings who downloaded the app.