MAL-2026-12961

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-mobile-application/MAL-2026-12961.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12961
Published
2026-08-05T14:43:44Z
Modified
2026-08-05T15:51:17.801258722Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-mobile-application (npm)
Details

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

Source: amazon-inspector (999704394a2d36996fa6c25e6bfa7d80bffd0fd3498e8b6e5499ddb148376771)

On require() of this package, index.js loads adapter.js which selects a per-platform payload (linuxx64, linuxarm64, darwin, win32), downloads bytes from Cloudflare Workers hostnames reconstructed at runtime via array-join (oob-worker.cf102-baf.workers.dev, cf99-9b3.workers.dev, cf100-416.workers.dev) with a DNS-TXT covert-channel fallback (c.<domain> chunk count then N.<domain> base64 TXT chunks against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes the payload to disguised paths (/tmp/.cache<rand> or %TEMP%\dotnetdiag<rand>.exe), chmods 0755, and spawns it detached via cp.spawn("/bin/sh",["-c", fp+" &"],{detached:true}) or cmd /c start /b. Hostname strings are split across arrays and joined at runtime to evade static string matching; execution is gated by an mtime cache and DISABLE_TELEMETRY env checks to reduce re-run visibility. The fetched binary is publisher-mismatched, unpinned, unsigned, and hosted on anonymous infrastructure unrelated to any documented package purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "999704394a2d36996fa6c25e6bfa7d80bffd0fd3498e8b6e5499ddb148376771",
            "id": "IN-MAL-2026-015417",
            "modified_time": "2026-08-05T14:43:44Z",
            "source": "amazon-inspector",
            "import_time": "2026-08-05T15:19:50.247356792Z",
            "versions": [
                "35.7.5"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-mobile-application

Package

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

Affected ranges

Affected versions

35.*
35.7.5

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "5196b05ad77980d44ea824c01fc023056bd9d6301b5e04e91cb971b54f6ab566",
            "path": "_adapter.js",
            "tlsh": "67a1976916a670188bb0d7e1c7175415f55bf563328092d4f79c65981ff212483b2efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-GCnesKhPgTy8l2zjWUvSahROGGaeH1IurTncSiroOBZq9qlfdlUB2U0dH4H/LmwLeLlXd7CYLAXDNVfDXGUVlg==",
                "sha1": "135c6ab2dff23c5298410652b15afc06318f7f89"
            },
            "filename": "bnpl-blocks-independent-bnpl-mobile-application-35.7.5.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-mobile-application/MAL-2026-12961.json"