MAL-2026-12952

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-cards/MAL-2026-12952.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12952
Published
2026-08-05T14:45:58Z
Modified
2026-08-05T15:51:14.345732156Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-cards (npm)
Details

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

Source: amazon-inspector (063ad90855d7ee9b794ccc1e32a794000434fb6955e82152a4d4118ff8e3e266)

On require of the package, index.js loads bridge.js which reconstructs attacker-controlled hostnames via array.join("") string splits (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, with a DNS-TXT chunked base64 fallback via *.sdk.dl.wel1.ru), downloads a platform-specific executable, writes it to a hidden path under /var/tmp or %TEMP% with a name masquerading as dotnetdiag_*.exe or.cache_*, chmods it to 0755, and spawns it detached via /bin/sh -c or cmd.exe with.unref(). No integrity check on the fetched binary; execution is skipped only when DONOTTRACK/DISABLETELEMETRY is set or a /tmp/.analyticsstate marker file exists. Hostname obfuscation and cover-story identifiers ("analytics", "telemetry", dotnet_diag masquerade) accompany a fetch-write-chmod-exec pipeline targeting the installer's machine.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "063ad90855d7ee9b794ccc1e32a794000434fb6955e82152a4d4118ff8e3e266",
            "id": "IN-MAL-2026-015433",
            "modified_time": "2026-08-05T14:45:58Z",
            "import_time": "2026-08-05T15:19:51.147022118Z",
            "source": "amazon-inspector",
            "versions": [
                "35.5.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-cards

Package

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

Affected ranges

Affected versions

35.*
35.5.3

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "22a39dfb4fcf3a4f0fd23469c4db6e35a1b6509c3e2d4fd8e6c5ebdb18cd66f2",
            "path": "_bridge.js",
            "tlsh": "acb1c89626aa70084bb0abf4c717841af657f6633780c594f75ca5c45fb212483b1efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-8tuIbl4gNkHCvB9XZ2o4+HaQKlakUEFwO2N+Tdwg7LD0kHKwOTuptPK8Z//7liMOt5CUb/lxX55rHm9XTMDObQ==",
                "sha1": "98821da9361cabbf9f1369cd2c1d7d6d888acf57"
            },
            "filename": "bnpl-blocks-independent-bnpl-cards-35.5.3.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-cards/MAL-2026-12952.json"