MAL-2025-2541

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/yellowcard-styling-config/MAL-2025-2541.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2025-2541

Published

2025-03-19T20:28:06Z

Modified

2025-10-30T06:50:52Z

Summary

Malicious code in yellowcard-styling-config (npm)

Details

-= Per source details. Do not edit below this line.=-

Source: google-open-source-security (12dee9a88b4f374a8db73de73d255757719bcc1d3124dfe2599b3dbfe3a49d6d)

This package installs a dependency hosted on a custom domain that runs an info stealer during installation. The info stealer focuses on stealing npm, git, and other CI/CD related tokens.

Source: ossf-package-analysis (85a2e473d439da53ddbf091853d2c762d54137a4f23925089435d028f2968dd2)

The OpenSSF Package Analysis project identified 'yellowcard-styling-config' @ 9999.1.1 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.
The package executes one or more commands associated with malicious behavior.

Database specific

{
    "malicious-packages-origins": [
        {
            "import_time": "2025-03-19T20:36:14.350486916Z",
            "sha256": "85a2e473d439da53ddbf091853d2c762d54137a4f23925089435d028f2968dd2",
            "modified_time": "2025-03-19T20:28:06Z",
            "versions": [
                "9999.1.1"
            ],
            "source": "ossf-package-analysis"
        },
        {
            "import_time": "2025-10-30T03:28:39.245969Z",
            "sha256": "12dee9a88b4f374a8db73de73d255757719bcc1d3124dfe2599b3dbfe3a49d6d",
            "modified_time": "2025-10-30T03:28:23Z",
            "versions": [
                "1.0.1"
            ],
            "source": "google-open-source-security"
        }
    ]
}

References

https://www.koi.ai/blog/phantomraven-npm-malware-hidden-in-invisible-dependencies

Credits

- OpenSSF: Package Analysis - FINDER
- - https://github.com/ossf/package-analysis
  - https://openssf.slack.com/channels/package_analysis

Affected packages

npm / yellowcard-styling-config

Package

Name: yellowcard-styling-config; View open source insights on deps.dev
Purl: pkg:npm/yellowcard-styling-config

Affected ranges

Affected versions

1.*

1.0.1

9999.*

9999.1.1

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/yellowcard-styling-config/MAL-2025-2541.json"