MAL-2026-13010

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-title/MAL-2026-13010.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13010
Published
2026-08-05T14:36:57Z
Modified
2026-08-05T15:51:40.706126537Z
Summary
Malicious code in bnpl-blocks-mobile-bnpl-title (npm)
Details

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

Source: amazon-inspector (5cf4f269562c9f3d9dd234e8c38b6d3408b636a4e743a6106dff730efce473ce)

On require of the package, index.js loads support.js, which selects a per-platform binary path, downloads bytes from a pool of obfuscated Cloudflare Workers mirrors whose hostnames are reassembled at runtime from split string fragments (e.g. oob-worker.cf103-070.workers.dev), writes the payload to a disguised temp filename such as dotnetdiag<hex>.exe or.cache<hex>, chmods 0755 on POSIX, and spawns it detached via cmd.exe /c start /b or /bin/sh -c '<path> &'. If HTTPS mirrors fail, a fallback covert channel resolves DNS TXT records under *.dl.wel1.ru, reassembles a base64-encoded executable from chunked TXT responses, and executes it the same way. No hash or signature check is performed. Hostnames are hidden via split-and-join to evade static inspection. The combination of import-time execution, unpinned remote payload, non-publisher hosts with obfuscated names, DNS-over-TXT payload transport, and detached background spawn is a full-host remote code execution channel against the installer.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:36:57Z",
            "versions": [
                "35.7.1"
            ],
            "source": "amazon-inspector",
            "import_time": "2026-08-05T15:19:47.625924579Z",
            "sha256": "5cf4f269562c9f3d9dd234e8c38b6d3408b636a4e743a6106dff730efce473ce",
            "id": "IN-MAL-2026-015371"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-mobile-bnpl-title

Package

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

Affected ranges

Affected versions

35.*
35.7.1

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "tlsh": "36a1a59a15aa30184bb097e4cb174416fa5bf6a33380c2d4f76ca5841fb252483b2ffc",
            "sha256": "21a0e5033a0dfd87e8c749107fbd792592c48016f8f18a2605685f8273e7cc0c",
            "path": "_support.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "bnpl-blocks-mobile-bnpl-title-35.7.1.tgz",
            "hashes": {
                "sha1": "4be48e755540272cac0c1157bfb4a71169abdff2",
                "sha512_sri": "sha512-V5XcY8PqAk0gV9Qh12GJMXXAbRZ0vf0ql1caZMLy2IuG4UUfNPu50aoYU1D+2iVJDhMKYg8rqWcPymkY2EGRhQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-title/MAL-2026-13010.json"