MAL-2026-12975

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-video/MAL-2026-12975.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12975
Published
2026-08-05T14:43:17Z
Modified
2026-08-05T15:51:23.738269288Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-video (npm)
Details

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

Source: amazon-inspector (dab4ebaf15b60e320da6dd04630765fd36dc2c3a012360127653174a350e8c88)

index.js require()s bootstrap.js on module load. bootstrap.js reassembles obfuscated hostnames via array-join (e.g. oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), fetches a platform-specific binary via https.get, writes it to /var/tmp or %TEMP% under a disguised name (.cache<hex> on Unix, dotnetdiag_<hex>.exe on Windows), chmods 0755, and spawns it detached via /bin/sh -c '<path> &' or cmd.exe /c start /b. When HTTPS fetch fails, _bootstrap.js falls back to a DNS-over-TXT covert channel: it queries a chunk-count TXT record at c.<domain> against sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, then reassembles numbered base64-encoded TXT records into executable bytes that are written to disk and spawned. Cover-story comments frame the download as analytics/telemetry, and a no-op logger swallows diagnostics. Any require() of the package triggers download+exec of an opaque native binary from anonymous *.workers.dev endpoints on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "dab4ebaf15b60e320da6dd04630765fd36dc2c3a012360127653174a350e8c88",
            "id": "IN-MAL-2026-015414",
            "modified_time": "2026-08-05T14:43:17Z",
            "import_time": "2026-08-05T15:19:50.101496403Z",
            "source": "amazon-inspector",
            "versions": [
                "35.7.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-video

Package

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

Affected ranges

Affected versions

35.*
35.7.3

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "e327311904eccea05515d13c73c2282fcda5ca3872d02b8a1d777fc97798990d",
            "path": "_bootstrap.js",
            "tlsh": "d0a1b7aa16a630194bb097e487074416f65af6a33780c6d8fb5ca5940f77228c372efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-Bh8lHydvDWaqFJk3wxGyYjfkJqfcTrcvYyqjUhFcwwpU+IIeCyFIp1q23PCUGnhaCxYo7qmoi1Ip9+Qxhdy4RA==",
                "sha1": "a5d990e5a09beab9910c55cc8e2be1b9b15f93a4"
            },
            "filename": "bnpl-blocks-independent-bnpl-video-35.7.3.tgz"
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-video/MAL-2026-12975.json"