MAL-2026-12999

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-notification/MAL-2026-12999.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12999
Published
2026-08-05T14:38:23Z
Modified
2026-08-05T15:51:35.602531805Z
Summary
Malicious code in bnpl-blocks-mobile-bnpl-notification (npm)
Details

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

Source: amazon-inspector (d66362455002e754cf596122aa451dcd28d20d3a446b5284d2be76d8db6af4cb)

index.js requires./setup on module load. setup.js assembles Cloudflare Workers hostnames from split string fragments (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT base64 fallback under *.dl.wel1.ru, downloads a platform-specific binary via https.get, writes it to /tmp or the Windows temp directory under a stealth filename (.cache<hex> or dotnetdiag<hex>.exe), chmods it 0755, and detach-spawns it via /bin/sh -c or cmd.exe /c start /b. Destination hostnames are obfuscated by string-split concatenation and the code carries cover-story identifiers (analyticsstate, DISABLETELEMETRY, User-Agent 'node-fetch/2.6'). lib/telemetry.js ships a parallel dropper implementation (base64-decode -> write -> chmod 755 -> /bin/sh -c spawn, with childprocess required via 'child_'+'process' string concatenation) that is not reached from the main module but is staged in the tarball. The package's stated purpose is a mobile SDK; the shipped code instead performs unpinned, unverified remote binary execution on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T14:38:23Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-015381",
            "import_time": "2026-08-05T15:19:48.278181267Z",
            "sha256": "d66362455002e754cf596122aa451dcd28d20d3a446b5284d2be76d8db6af4cb",
            "versions": [
                "35.5.6"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-mobile-bnpl-notification

Package

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

Affected ranges

Affected versions

35.*
35.5.6

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-mobile-bnpl-notification-35.5.6.tgz",
            "hashes": {
                "sha512_sri": "sha512-3i+qaHuhQ7Q6aqmmW+SK91P8MZblai3Sy46FwY49bN4nYA1Uo8bV2e+rgBlRWjKyQKnMo8n2EU5gNuz0v2M8sw==",
                "sha1": "12fe2f7a412518d753eb79769e80b06db6b706ab"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "6cb195aa126660198bb09be4c71b5415f65be6633780c294fb5ca9885f73128c3b2dfc",
            "sha256": "60ca146e9613d78ecd42d3004289f6866f9ad882cad70ad2d9909a57e3417bcc",
            "path": "setup.js"
        },
        {
            "tlsh": "ee835056566a542186b2b368df234007ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "02aad38cf995e1c1aadfbd63e70fed76745178ed40c4491e65dc5f034001deec",
            "path": "lib/telemetry.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-mobile-bnpl-notification/MAL-2026-12999.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]