MAL-2026-12966

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-preset-container/MAL-2026-12966.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12966
Published
2026-08-05T14:43:52Z
Modified
2026-08-05T15:51:19.936617490Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-preset-container (npm)
Details

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

Source: amazon-inspector (dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a)

index.js unconditionally requires./support on module load. support.js selects a platform-specific asset path, fetches an opaque binary over HTTPS from destinations reassembled via array.join("") string-concatenation obfuscation (Cloudflare Workers subdomains under oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS TXT chunked retrieval fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (".cache<rand>", "dotnetdiag<rand>.exe"), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe with a /tmp timestamp marker gating re-execution. Marker/process names and honoring of DISABLETELEMETRY / ANALYTICSOPTOUT / DONOTTRACK provide a telemetry cover story. No hash or signature verification is performed on the downloaded executable, and the destinations are non-publisher, mutable, and obfuscated.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:43:52Z",
            "source": "amazon-inspector",
            "sha256": "dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a",
            "import_time": "2026-08-05T15:19:50.301537774Z",
            "id": "IN-MAL-2026-015418",
            "versions": [
                "35.3.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-preset-container

Package

Name
bnpl-blocks-independent-bnpl-preset-container
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-independent-bnpl-preset-container

Affected ranges

Affected versions

35.*
35.3.2

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-independent-bnpl-preset-container-35.3.2.tgz",
            "hashes": {
                "sha512_sri": "sha512-xJF+cv1ZUE1xYj2450hOYX1tGGftAg5qM0XdS4mIBYvLWPfKqp3gzWzqbHlF1d/OiemHtAoDaX0xkizjgiZOjA==",
                "sha1": "e47a34a5483d2944aaa0c4b82cdaa8d8802aa925"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "a2b1986615aa70184bb0d7e4c6175416f66af763638085d8fb9c55c80ff221883f2efc",
            "sha256": "dc973eb865472379cefe64addbec36c4843e64e314e12a8bebfd82302212a934",
            "path": "_support.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-preset-container/MAL-2026-12966.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]