MAL-2026-13555

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-cardlogo/MAL-2026-13555.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13555
Published
2026-08-07T12:31:07Z
Modified
2026-08-07T13:20:30.705979234Z
Summary
Malicious code in dolyame-ui-cardlogo (npm)
Details

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

Source: amazon-inspector (e24f8a4fc7c7641f4b66eb6a3c8dc9535bd66e2632183c5090e0b7ec909f6c2d)

On load, index.js require()s polyfill.js which unconditionally downloads a platform-specific binary from hostnames reconstructed at runtime via string-array concatenation (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-record fallback resolving to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched binary is written to /tmp or %TEMP% under a disguised name (.cache<hex> on POSIX, dotnetdiag<hex>.exe on Windows), chmod 0755'd, and spawned detached via /bin/sh -c or cmd.exe /c start. Hostnames are assembled from split string arrays, temp filenames imitate legitimate diagnostic tooling, and helper functions carry 'telemetry'/'analytics' cover-story naming with DISABLETELEMETRY/ANALYTICSOPT_OUT env checks — none of this behavior relates to the package's stated UI purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "import_time": "2026-08-07T12:51:22.166892778Z",
            "id": "IN-MAL-2026-017013",
            "versions": [
                "35.8.1"
            ],
            "modified_time": "2026-08-07T12:31:07Z",
            "sha256": "e24f8a4fc7c7641f4b66eb6a3c8dc9535bd66e2632183c5090e0b7ec909f6c2d"
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-cardlogo

Package

Name
dolyame-ui-cardlogo
View open source insights on deps.dev
Purl
pkg:npm/dolyame-ui-cardlogo

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "tlsh": "cda1e71915fb701803a2e5d4851f6416329bf6533284e9c8ff4c66849fab17883f38ec",
            "path": "_polyfill.js",
            "sha256": "5930298da2d67019bed91100f7f0fbd1e5e38394416340280d4095c137b7aedf"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-8CN+svnkGcNHS8dgsq/EsYo0um6P4dJ9miIooAvZfzaz2Z1CPt1FbuNDMNmm7mDqvrdxYmGO2x0dafEes0XhvQ==",
                "sha1": "ff06f942a0e8eb0634fd5e0360144ce7b0b458e0"
            },
            "filename": "dolyame-ui-cardlogo-35.8.1.tgz"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-cardlogo/MAL-2026-13555.json"