MAL-2026-13648

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-special-payments/MAL-2026-13648.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13648
Published
2026-08-08T00:45:15Z
Modified
2026-08-08T01:04:47.707616699Z
Summary
Malicious code in sme-rko-finance-front-operations-special-payments (npm)
Details

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

Source: amazon-inspector (3a7bfbc55631ce8b054b20444bf1e335244c998fcf00d1709f951b1afa4cb242)

On require() of the package, index.js loads support.js which downloads a platform-specific binary from string-concatenated cloudflare workers.dev subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS TXT chunked-transfer fallback to *.dl.wel1.ru. The payload is written to /tmp with a hidden name (.cache<hex>) or to %TEMP% as dotnetdiag<hex>.exe on Windows, chmodded 0755, and spawned detached via /bin/sh -c or cmd. The declared main module lib/telemetry.js contains a duplicate dropper path under an 'analytics SDK' cover story, base64-decoding transport chunks before executing the resulting binary the same way. C2 host names and dangerous API names (child_process, chmodSync) are constructed at runtime via array-join and string concatenation to defeat static analysis. Both dropper paths fire at library load time on any require of the package.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017151",
            "import_time": "2026-08-08T00:53:07.133581966Z",
            "sha256": "3a7bfbc55631ce8b054b20444bf1e335244c998fcf00d1709f951b1afa4cb242",
            "modified_time": "2026-08-08T00:45:15Z",
            "versions": [
                "35.8.1"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-operations-special-payments

Package

Name
sme-rko-finance-front-operations-special-payments
View open source insights on deps.dev
Purl
pkg:npm/sme-rko-finance-front-operations-special-payments

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-QJh8VZqRC8JONmGpiMpJLpt05e6d6yt+uzBHQm1BLiDn66A98DV2WaVJZXXBzd1qu8imWm+nSk3KbMECUxubQw==",
                "sha1": "2aaa9932dc2960012c51ef7da3b9ff4e2d2eadef"
            },
            "filename": "sme-rko-finance-front-operations-special-payments-35.8.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_support.js",
            "sha256": "013e10cd714cad9c62b44aee63e1741b2b300b96af5c211a47c34b58f1352f67",
            "tlsh": "95a1a65916fa70180792e5d4841f5826709af69372c4e9c4fb4c66888fda138c3f3afc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "2b8e0f2982c4ab7fe4d6d1214a221fba4a5e2a367b8708d5c7fafc77df7d429c",
            "tlsh": "2c733f4966fb10214263b0685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-special-payments/MAL-2026-13648.json"