MAL-2026-13655

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl/MAL-2026-13655.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13655
Published
2026-08-08T00:43:23Z
Modified
2026-08-08T01:04:50Z
Summary
Malicious code in sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl (npm)
Details

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

Source: amazon-inspector (4554e1a911548ca2145464d06bcd3c66d69c9fb307a1df557924fb89b3e8c7fd)

On require() of the package, index.js loads _bootstrap.js which selects a payload path based on process.platform/arch (linux_x64, linux_arm64, darwin, win32), downloads an executable over HTTPS from one of several Cloudflare Workers subdomains whose hostnames are assembled at runtime via array-join obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT base64 chunked fallback across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under a disguised name, chmod 755, and spawned detached via /bin/sh -c or cmd.exe. The package.json describes the module as "API client wrappers" for an internal payments module, but the on-load behavior is unrelated OS-branched remote code execution. Hostname obfuscation via array-join and a DNS-TXT fallback resolver are deliberate evasion of static string scanners.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017139",
            "import_time": "2026-08-08T00:53:06.208542286Z",
            "modified_time": "2026-08-08T00:43:23Z",
            "sha256": "4554e1a911548ca2145464d06bcd3c66d69c9fb307a1df557924fb89b3e8c7fd",
            "source": "amazon-inspector",
            "versions": [
                "35.8.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl

Package

Name
sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl
View open source insights on deps.dev
Purl
pkg:npm/sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl

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 
{
    "evidence_files": [
        {
            "path": "_bootstrap.js",
            "sha256": "7737fa694684bd6964263fc930a04c8fd799a0c93e290cddd774928414ac43e2",
            "tlsh": "a8a1a71916fa30180792e0d5891b6816b19bf59332c4e9d4f74c66948fd766883f3eec"
        },
        {
            "path": "package.json",
            "sha256": "343a9dbdaf3c29976e0979579be54b5e7bce8daa750b9e5b6eec50295cee85c9",
            "tlsh": "7ee086102aa2993354ca06160c6592676230ce6b40447c0d33df152c469e5b759fa31b"
        }
    ],
    "package_integrity": [
        {
            "filename": "sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl-35.8.1.tgz",
            "hashes": {
                "sha1": "1da86874e5cccdfb6b552b0627ba2ee4b3cef845",
                "sha512_sri": "sha512-CqIDiWtw/dB6eQWsKP5Hhe0QWXIfTbvN/Qhr5mNFYRJp3LpLPr0tF47OkcgnNCtD7nJELm08HWd1nhepgxZWGg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-payments-classic-payment-actions-operations-repeat-impl/MAL-2026-13655.json"