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Fake Wallpaper App, YouTube Channel Used to Spread notnullOSX Malware

ID: 8a8a36bd-f3ae-5a53-9a93-25d8c34cae64

STIX ID: report--8a8a36bd-f3ae-5a53-9a93-25d8c34cae64

Feed Name: GBHackers

Threat Score
78/100

Date Published: 2026-04-23

Date Updated: 2026-04-23

Author: Mayura Kathir

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A targeted campaign distributes notnullOSX — a modular Go-based macOS infostealer — via fake wallpaper installers and a hijacked YouTube channel; attackers socially engineer users to grant Full Disk Access, then exfiltrate cryptocurrency wallets, credentials, and other sensitive data, with operator ties to alias “alh1mik” and multiple IOCs and delivery domains provided.

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