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Operation Brainleeches: Malicious npm packages fuel supply chain and phishing attacks

2023-07-06, ReversingLabs
https://www.reversinglabs.com/blog/operation-brainleeches-malicious-npm-packages-fuel-supply-chain-and-phishing-attacks
#Brainleeches #NPM

Contents

Executive Summary
ReversingLabs researchers recently discovered more than a dozen malicious packages published to the npm open source repository that appear to target application end users while also supporting email phishing campaigns targeting Microsoft 365 users. Some key takeaways from our report:
- The discovery may be the first "dual use" campaign in which malicious open source packages power both commodity phishing attacks and higher-end software supply chain compromises.
- The malicious npm packages were discovered in two tranches: One supported phishing attacks that harvested user data with phony Microsoft.com login forms launched from malicious email attachments. The other was intended to implant credential harvesting scripts in applications that inadvertently incorporate the npm packages.
- The malicious packages were posted to npm between May 11 and June 13. They mimic legitimate npm modules, notably jquery, which has about 7 million weekly downloads.
- The malicious packages were downloaded around 1,000 times in total, but were …

IoC

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http://ourwhite.brainleeches.xyz