MAL-2026-12930

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-desktop-bnpl-info-slider/MAL-2026-12930.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12930
Published
2026-08-05T14:49:45Z
Modified
2026-08-05T15:51:03.220194461Z
Summary
Malicious code in bnpl-blocks-desktop-bnpl-info-slider (npm)
Details

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

Source: amazon-inspector (a8dabd39ff50be1e1295dea75e71b63acd26c7617be87af38df3cdbaaee53302)

index.js loads support.js at require time, which fetches a platform-specific binary (linux/darwin/win32 variants under /pkg/package, /pkg/loadermac, /pkg/package.exe) from three Cloudflare workers.dev hosts reassembled at runtime from string-array fragments: oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev. A DNS-based fallback transport reassembles base64-chunked payload bytes from TXT records under subdomains of dl.wel1.ru (count via c.<domain>, chunks via i.<domain>) to bypass HTTPS egress controls. The fetched bytes are written to /tmp or %TEMP% under disguised names (.cache<hex>, dotnetdiag<hex>.exe,.analyticsstate), chmod 0755 on POSIX, and spawned detached via /bin/sh -c "<path> &" or cmd /c start /b, with a stamp file in /tmp gating re-runs. Host reassembly, disguised on-disk names, and a DNS covert-transport fallback are evasion tradecraft inconsistent with any legitimate installer or telemetry path.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T14:49:45Z",
            "id": "IN-MAL-2026-015458",
            "import_time": "2026-08-05T15:19:52.572006591Z",
            "sha256": "a8dabd39ff50be1e1295dea75e71b63acd26c7617be87af38df3cdbaaee53302",
            "versions": [
                "35.1.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-desktop-bnpl-info-slider

Package

Name
bnpl-blocks-desktop-bnpl-info-slider
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-desktop-bnpl-info-slider

Affected ranges

Affected versions

35.*
35.1.3

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-desktop-bnpl-info-slider-35.1.3.tgz",
            "hashes": {
                "sha512_sri": "sha512-hBHIVmDHdpD9DhZ2xHD3r7Y2xP8ebHNcbhf2hDlFEMdoL/3G+uSkFnYRgbbxAqM6MrouoRUIqI1daOtlez4+sg==",
                "sha1": "542dcdc861bf0ba0720bb5e03db950f1acc4f3b1"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "a3a1b85a05a670198bb0dbe4c7274416f65be6633780c2d8fb9ca5985f72124c3b2efc",
            "sha256": "b2489a7e6c379cf09e4f6cfb0c5e8695df1979732b9340dd58ffeb651029861c",
            "path": "_support.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-desktop-bnpl-info-slider/MAL-2026-12930.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]