MAL-2026-12580

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/checkout-mobile-total/MAL-2026-12580.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12580
Published
2026-08-05T14:10:03Z
Modified
2026-08-05T14:35:33.524131815Z
Summary
Malicious code in checkout-mobile-total (npm)
Details

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

Source: amazon-inspector (c1943ab64ce84576c6fef87d3b46187d0e442941f691d645adfe5f73595cfe9a)

On require of the package, index.js unconditionally loads vendor.js, which fetches a platform-specific binary from hardcoded Cloudflare Workers hosts (e.g. oob-worker.cf100-416.workers.dev) assembled by joining split string fragments, with a DNS-TXT covert-channel fallback to *.dl.wel1.ru. The retrieved payload is written to /var/tmp or %TEMP% under disguised names (.cache<rnd>, dotnetdiag<rnd>.exe), chmodded 0755, and spawned detached via /bin/sh -c or cmd.exe. No hash or signature verification is performed, hostnames are unrelated to any declared publisher, and the destinations are concealed via string-split obfuscation. Package name mimics a checkout/payments library, consistent with typosquat lure targeting mobile checkout tooling.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "c1943ab64ce84576c6fef87d3b46187d0e442941f691d645adfe5f73595cfe9a",
            "id": "IN-MAL-2026-015192",
            "modified_time": "2026-08-05T14:10:03Z",
            "source": "amazon-inspector",
            "import_time": "2026-08-05T14:20:11.515220185Z",
            "versions": [
                "35.8.9"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / checkout-mobile-total

Package

Name
checkout-mobile-total
View open source insights on deps.dev
Purl
pkg:npm/checkout-mobile-total

Affected ranges

Affected versions

35.*
35.8.9

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "5005289cb1967d2e83a25d56239d58ebfce164a1b80e8c8f6e8204f6cfddc7cc",
            "path": "_vendor.js",
            "tlsh": "7eb1975a15aa70188bb0d7e0c717541af65bf6633780c6d8f79c95981f7212483b2efc"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-ybtB6SI7++dMu8LohvMcoqXwMm1/2HwYb7MQUdqza37Qsvl94OcvnFeLrOXz4GLplwFiBxV8D/0AQDqQceBAxg==",
                "sha1": "af05d234bcac4965d37cc6ffc0783ff1da5740e0"
            },
            "filename": "checkout-mobile-total-35.8.9.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/checkout-mobile-total/MAL-2026-12580.json"