North Korean hackers are pushing fake Microsoft Teams Update to macOS users

2025-12-04 Moonlock

https://archive.md/8xDxT

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A macOS campaign described as consistent with DPRK recruitment and crypto-targeting activity used a fake “Microsoft Teams Update” AppleScript loader named Microsoft Teams Update.scpt. The script was branded as a Microsoft Teams Live SDK update and opened a legitimate Microsoft Teams page in the background to make the activity appear normal to the user. Its malicious logic used curl -L -k to fetch a second-stage script from support.ms-live[.]com/519738/check and executed the downloaded content through AppleScript. The source provides the SHA-256 hash d4310e8286fc3e29c7dce8ed8ccffe3bbc1a38369cdeec55095d5716dd89e624 and related loader hashes, giving defenders concrete macOS artifacts for hunting.

Indicators of Compromise

Type Value First Seen Last Seen
HASH 9135fb9e74bdb39828bfecf79194300… 2025-12-04 2025-12-04
HASH 14aba88b5f87ab9415bbca855d24abc… 2025-12-04 2025-12-04
HASH 81c4ce82fe26e333a46e8a3d876e35b… 2025-12-04 2025-12-04
HASH d4310e8286fc3e29c7dce8ed8ccffe3… 2025-12-04 2025-12-04
URL https://support.ms-live.com/519… 2025-12-04 2025-12-04
DOMAIN support.ms-live.com 2025-12-04 2025-12-04

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