MAL-2026-12969

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-separator/MAL-2026-12969.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12969
Published
2026-08-05T14:41:52Z
Modified
2026-08-05T15:51:21.131171793Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-separator (npm)
Details

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

Source: amazon-inspector (a8e34f125883bf487e46fede3b2094978e853711c0688c8712cc5628e929f0ad)

Requiring this package triggers init.js, which selects a platform-specific payload URL from string-concat-obfuscated Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-TXT base64 reassembly fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written to /tmp or the Windows temp directory under disguised names such as dotnetdiag_*.exe and.cache_*, chmod 0755, and spawned detached via /bin/sh -c or cmd.exe /c start /b. Cover-story naming (.analytics_state run-once marker, DISABLETELEMETRY/DONOTTRACK env checks) frames the behavior as analytics. A secondary dropper with the same fetch/writeFile/chmod/spawn shape ships in lib/telemetry.js, using base64-decoded payload chunks and split-string require('child'+'process'). The destinations are non-publisher infrastructure, the payload bytes are opaque, and hostnames plus module names are assembled at runtime to evade static review.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "35.3.8"
            ],
            "id": "IN-MAL-2026-015404",
            "import_time": "2026-08-05T15:19:49.546084129Z",
            "modified_time": "2026-08-05T14:41:52Z",
            "source": "amazon-inspector",
            "sha256": "a8e34f125883bf487e46fede3b2094978e853711c0688c8712cc5628e929f0ad"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-separator

Package

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

Affected ranges

Affected versions

35.*
35.3.8

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-HxE7ZPPXGBoPGB9fZsaHjZ4xdHo7GAeF1P0HN/UlHgSqT2nHPBQMIPEpKT/h+T93gAv8eeQ+uyXg5y+huqh6ig==",
                "sha1": "a318039bb7f0e9fe5622024ebe0482c68501086b"
            },
            "filename": "bnpl-blocks-independent-bnpl-separator-35.3.8.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_init.js",
            "tlsh": "eda1875a056670198b70dbe48b278416f56be663338086d4fb9ca9984f7713483b2efc",
            "sha256": "74464173b3b8908a13c9bc32404787985868c091d4efee0c09c0ac7056710bf4"
        },
        {
            "path": "lib/telemetry.js",
            "tlsh": "6e835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "11f27506025646e252a081be7c417cf9994a86f4a20450dd49f085cbeabcb6cd"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-separator/MAL-2026-12969.json"