MAL-2026-13634

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-domain/MAL-2026-13634.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13634
Published
2026-08-08T00:46:47Z
Modified
2026-08-08T01:04:56.712760673Z
Summary
Malicious code in sme-rko-finance-front-operations-domain (npm)
Details

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

Source: amazon-inspector (e254c7a7e7f82c38dddb46c9c694cef8f91ac1731565c61e7d17b30d291bd7ac)

On require of the package, index.js loads shim.js which self-executes an async initializer that assembles platform-specific hostnames from split-string arrays (e.g. ["oob-worker.cf102-b","af.w","or","kers.","de","v"].join("") and ["pkg.dl.wel1.r","u"].join("")) targeting oob-worker.cf102-baf.workers.dev and sdk/ext/pkg/net.dl.wel1.ru, downloads a native binary over HTTPS, writes it to /tmp or %TEMP% under disguised names (.cache<hex> or dotnetdiag<hex>.exe), chmods it 0755, and spawns it detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. A DNS-TXT fallback channel (dns.resolveTxt on c.<domain>, 0.<domain>, 1.<domain>,...) reassembles and base64-decodes a payload when HTTPS retrieval fails, bypassing HTTP egress controls. lib/telemetry.js, loaded from index.js and presented as an observability/Sentry-like SDK, contains the same base64-materialize + chmodSync + childprocess.spawn("/bin/sh",...) dropper primitives, providing a duplicate execution path. childprocess, chmodSync, and endpoint hostnames are reconstructed at runtime from concatenated fragments to evade static scanners. No integrity check or pinned publisher-owned source; the fetched bytes are opaque and unverifiable.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-08T00:46:47Z",
            "source": "amazon-inspector",
            "versions": [
                "35.8.1"
            ],
            "sha256": "e254c7a7e7f82c38dddb46c9c694cef8f91ac1731565c61e7d17b30d291bd7ac",
            "id": "IN-MAL-2026-017162",
            "import_time": "2026-08-08T00:53:07.870125578Z"
        }
    ]
}
References
Credits

Affected packages

npm / sme-rko-finance-front-operations-domain

Package

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

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "24ebbce6dd2ad7fcec436cf8b5798037d1f109dc",
                "sha512_sri": "sha512-hTTFe6BkAP0Rd1TfYbHhkv5lSzk2sXLUxni+iJMKoVzFPPlAj8ca2ezrY6cp/LTM6yk+hd6dyExUXW7KDCGzyg=="
            },
            "filename": "sme-rko-finance-front-operations-domain-35.8.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "tlsh": "b3a1761926fb301806d3f1e4851b5816719af59333c4d994fb8c6aa48fd767483b3aec",
            "sha256": "7326c0db1331e43b3277222d0f099088f27413f1e045a5574dfde260e000dcc5",
            "path": "_shim.js"
        },
        {
            "tlsh": "35733f4966fb10214263b0685ebb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9",
            "sha256": "f41f9929ee2adf1cb8abbe966a1ecb66716a31149f0f5b93cd8d72437573e868",
            "path": "lib/telemetry.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sme-rko-finance-front-operations-domain/MAL-2026-13634.json"