MAL-2026-12974

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-title/MAL-2026-12974.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12974
Published
2026-08-05T14:42:42Z
Modified
2026-08-05T15:51:23.446037413Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-title (npm)
Details

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

Source: amazon-inspector (5e5739a73a4f30d9828f08510a518df278f00214576e8c2aaea847bc536989bd)

The package advertises itself as a UI title component but on require() of index.js loads support.js, which selects a per-OS payload path, fetches an unsigned binary from obfuscated Cloudflare Workers subdomains (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT-chunked base64 fallback from *.dl.wel1.ru (sdk/ext/pkg/net.dl.wel1.ru), writes it to /tmp or %TEMP% under a disguising name (e.g..cache<hex>, dotnetdiag<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd /c start. Endpoint hostnames and DNS-fallback domains are assembled by.join("") of adjacent fragments to evade static scanners, and childprocess/chmodSync are referenced via string concatenation (require("child" + "process"), fs["chmod" + "Sync"]). A parallel copy of the same drop-and-exec pattern ships in lib/telemetry.js framed as an 'Analytics SDK'. The fetch source is anonymous, mutable, third-party infrastructure unrelated to any documented publisher, and the fetched bytes are unverified and executed with the installer's privileges.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "5e5739a73a4f30d9828f08510a518df278f00214576e8c2aaea847bc536989bd",
            "id": "IN-MAL-2026-015410",
            "modified_time": "2026-08-05T14:42:42Z",
            "import_time": "2026-08-05T15:19:49.924498964Z",
            "source": "amazon-inspector",
            "versions": [
                "35.2.4"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-title

Package

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

Affected ranges

Affected versions

35.*
35.2.4

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "469b07332d8cd0485fc4ae08e06cd97205d764d319380467a2e95ded9c68bc43",
            "path": "_support.js",
            "tlsh": "eba1965a166670188bb0ebf487175819f65bf66333808284fb5c69d41f7716483b2efc"
        },
        {
            "sha256": "bfd70d523694ccec304491770a0e3ba42dd6429a9a358c978b08537b06f7f0fc",
            "path": "lib/telemetry.js",
            "tlsh": "92835055566a202186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-BMYQ/vHmROYtqRAoxV6tKlLc81a+zXSUsaM1g8i2imPUfJJ2lueiGo8j9on+tB3ZE1/s9v5G087T8Vphtbhh/Q==",
                "sha1": "89550ff5cc4332e49821f28bc92b86cd516b7647"
            },
            "filename": "bnpl-blocks-independent-bnpl-title-35.2.4.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-title/MAL-2026-12974.json"