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Dissecting Sapphire Sleet’s macOS intrusion from lure to compromise

2026-04-16, Microsoft
https://www.microsoft.com/en-us/security/blog/2026/04/16/dissecting-sapphire-sleets-macos-intrusion-from-lure-to-compromise/
#SapphireSleet #macOS

Contents

Executive summary
Microsoft Threat Intelligence uncovered a macOS‑focused cyber campaign by the North Korean threat actor Sapphire Sleet that relies on social engineering rather than software vulnerabilities. By impersonating a legitimate software update, threat actors tricked users into manually running malicious files, allowing them to steal passwords, cryptocurrency assets, and personal data while avoiding built‑in macOS security checks. This activity highlights how convincing user prompts and trusted system tools can be abused, and why awareness and layered security defenses remain critical.
Microsoft Threat Intelligence identified a campaign by North Korean state actor Sapphire Sleet demonstrating new combinations of macOS-focused execution patterns and techniques, enabling the threat actor to compromise systems through social engineering rather than software exploitation. In this campaign, Sapphire Sleet takes advantage of user‑initiated execution to establish persistence, harvest credentials, and exfiltrate sensitive data while operating outside traditional macOS security enforcement boundaries. While the techniques themselves are not novel, this …

IoC

http://uw04webzoom.us
http://83.136.208.246:6783
http://188.227.196.252
https://www.huntress.com/blog/inside-bluenoroff-web3-intrusion-analysis
http://check02id.com
http://83.136.208.246
https://cloud.google.com/blog/topics/threat-intelligence/unc1069-targets-cryptocurrency-ai-social-engineering
https://x.com/patrickwardle/status/2009008936771543341?s=46
https://x.com/malwrhunterteam/status/2008831892616081508
http://83.136.208.48
http://104.145.210.107
https://securelist.com/bluenoroff-apt-campaigns-ghostcall-and-ghosthie/117842/
http://83.136.209.22
http://83.136.210.180
83.136.208.246
188.227.196.252
83.136.209.22
83.136.208.48
83.136.210.180
104.145.210.107
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05e1761b535537287e7b72d103a29c4453742725600f59a34a4831eafc0b8e53
5e581f22f56883ee13358f73fabab00fcf9313a053210eb12ac18e66098346e5
8fd5b8db10458ace7e4ed335eb0c66527e1928ad87a3c688595804f72b205e8c
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