MAL-2026-13528

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-faq-item/MAL-2026-13528.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13528
Published
2026-08-07T12:32:37Z
Modified
2026-08-07T13:20:16.563392317Z
Summary
Malicious code in bnpl-blocks-atom-bnpl-faq-item (npm)
Details

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

Source: amazon-inspector (bcd2fbb910548df40180cd1e71ae6234dddbd8c60b871933d9012bab9f0742bb)

The package's main entry (index.js) requires./ext at module load. ext.js downloads a platform-specific binary from hardcoded Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) — assembled via string-split/join to defeat static scanners — with a DNS-TXT chunked-download fallback under *.dl.wel1.ru (c.<domain> for chunk count, <i>.<domain> for base64 payload chunks). The fetched bytes are written to /var/tmp/.cache<rnd> on POSIX or %TEMP%\dotnetdiag<rnd>.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd. A stamp file named.analyticsstate and the dotnetdiag* filename disguise are used to blend into normal system activity. Any require()/import of the package triggers download-and-execute of opaque attacker-controlled code on the installer's machine.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "bcd2fbb910548df40180cd1e71ae6234dddbd8c60b871933d9012bab9f0742bb",
            "source": "amazon-inspector",
            "import_time": "2026-08-07T12:51:22.602583377Z",
            "modified_time": "2026-08-07T12:32:37Z",
            "versions": [
                "35.8.2"
            ],
            "id": "IN-MAL-2026-017023"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-atom-bnpl-faq-item

Package

Name
bnpl-blocks-atom-bnpl-faq-item
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-atom-bnpl-faq-item

Affected ranges

Affected versions

35.*
35.8.2

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "a10c0bb6510dd7db7793f662abb1323fc1578d43",
                "sha512_sri": "sha512-JZ4VUSkTKO2b63Ptf6nBw0rPzMa5oioTbLWFVZ3jnCy8Yy8A0WyYzHRW5jPWcfo5sxqjBC3RsRgC/PmtbYoVQA=="
            },
            "filename": "bnpl-blocks-atom-bnpl-faq-item-35.8.2.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_ext.js",
            "sha256": "7d120bd6af322356bfd075f029d297fd34f36a160e9806773882247a2f9206d2",
            "tlsh": "58a1b69a166a700987b0d7e4c6274416f65be66337c0d5d8fb9c65981f730248372efc"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-faq-item/MAL-2026-13528.json"