MAL-2026-13026

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-molecule-mobile-bnpl-selector/MAL-2026-13026.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13026
Published
2026-08-05T14:33:07Z
Modified
2026-08-05T15:51:48.414463456Z
Summary
Malicious code in bnpl-molecule-mobile-bnpl-selector (npm)
Details

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

Source: amazon-inspector (daf9828096a3c18e00ad577689ebcf4e4fa304a8702db4a0993063c95182530e)

On require() of the package, index.js loads adapter.js, which runs an asynchronous dropper: it selects a platform-specific asset, downloads an executable via https.get from one of three Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev), writes the payload to /var/tmp/.cache<hex> with chmod 0755 on Unix or to the Windows temp directory as dotnetdiag<hex>.exe (masquerading as a.NET diagnostic tool), and spawns it detached via /bin/sh -c '<path> &' or cmd.exe /c start /b. Destination hostnames, the childprocess require, and chmodSync are hidden behind array-join string splits (e.g. "child"+"process", ["oob-worker.cf102-baf.wor","kers",".d","ev"].join("")). A DNS-over-TXT fallback resolves c.sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru for a chunk count, then reassembles a base64 payload from numbered TXT records under those subdomains and executes it identically, providing a covert transport that evades HTTP egress filtering. The dropper is framed with a fake "Analytics SDK" / DISABLE_TELEMETRY cover story. A second copy of the same dropper primitives is bundled under lib/telemetry.js (~81 KB) but is not required on the current execution path.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "35.1.1"
            ],
            "sha256": "daf9828096a3c18e00ad577689ebcf4e4fa304a8702db4a0993063c95182530e",
            "import_time": "2026-08-05T15:19:46.089617779Z",
            "id": "IN-MAL-2026-015346",
            "modified_time": "2026-08-05T14:33:07Z",
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-molecule-mobile-bnpl-selector

Package

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

Affected ranges

Affected versions

35.*
35.1.1

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-SLqjMqM8gxO7nrgHeZ5n92lAIafpZNEyQyVfF8lfNre1qexGXLhNFd61yCuYope93zI5fNr4Yz7BwqmpxlVD0g==",
                "sha1": "66a73f049edb4e6f56931250fa42fae543cd2959"
            },
            "filename": "bnpl-molecule-mobile-bnpl-selector-35.1.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "tlsh": "fda1749a16a670188bb0abf587164416f65af66337c0d2d4f79c69884fb312483b1efc",
            "sha256": "f19e57f1f65bb8613b3dc56d1bed5c743e800d684a5d6d36900416a89101c146",
            "path": "_adapter.js"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "bc39b107e5041e56eeecd1e857e0e1756b32992523c59d698ebbfd9969f80245",
            "tlsh": "0d835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-molecule-mobile-bnpl-selector/MAL-2026-13026.json"