MAL-2026-12998

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-news-cards/MAL-2026-12998.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12998
Published
2026-08-05T14:39:43Z
Modified
2026-08-05T15:51:35.311514675Z
Summary
Malicious code in bnpl-blocks-mobile-bnpl-news-cards (npm)
Details

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

Source: amazon-inspector (ad0b3eb1ec7b37f8483e53212833b81d542aabb784a525e56ce3b2b6e1e48217)

The package's index.js loads _runtime.js on require, which selects a platform-specific asset, fetches an opaque binary over HTTPS from author-controlled Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev), with a DNS-TXT fallback channel over sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written to /tmp or %TEMP% under cover-story names (.cache_<hex>, dotnet_diag_<hex>.exe, stamp file .analytics_state), chmod 0755, and spawned detached via /bin/sh -c "<path> &" on POSIX or cmd.exe /c start /b on Windows. Destination hostnames and discovery domains are assembled at runtime by Array.join('') on split fragments (e.g., ["oob-wor","ker.cf102-baf.workers.de","v"].join(""), ['sdk.dl.w','el1.r','u'].join('')) to defeat static string scanners. No hash or signature verification is performed on the fetched payload, and the package advertises itself as a trivial mobile SDK unrelated to any of this behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "ad0b3eb1ec7b37f8483e53212833b81d542aabb784a525e56ce3b2b6e1e48217",
            "id": "IN-MAL-2026-015390",
            "modified_time": "2026-08-05T14:39:43Z",
            "import_time": "2026-08-05T15:19:48.805934517Z",
            "source": "amazon-inspector",
            "versions": [
                "35.6.7"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-mobile-bnpl-news-cards

Package

Name
bnpl-blocks-mobile-bnpl-news-cards
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-mobile-bnpl-news-cards

Affected ranges

Affected versions

35.*
35.6.7

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "14dc2fc5008e93aa2b39b6e4abd6842098d86a2c8575834c7ab7a55e82dde9f7",
            "path": "_runtime.js",
            "tlsh": "1ba196aa05a670194bb0e7e4c7174829f55bf26337818288fb9c95885f72524c3b2efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-Si7YlRCNCeTvyJLtNdHeWPZW8cKURF/rLD998q0EK23PJliNeuHzaEM5ilx0jBZe6GqA1H6mS9Dp2VsEEDNnUA==",
                "sha1": "85e3291525d2e193b4c21cbd578b3806f412d6ed"
            },
            "filename": "bnpl-blocks-mobile-bnpl-news-cards-35.6.7.tgz"
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-news-cards/MAL-2026-12998.json"