MAL-2026-12367

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-form/MAL-2026-12367.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12367
Published
2026-08-05T12:32:43Z
Modified
2026-08-05T13:35:20.813162763Z
Summary
Malicious code in dolyame-ui-form (npm)
Details

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

Source: amazon-inspector (5714ca0e12469cd96b5fef550b4f9715da5b806e8bd365ecfbea757c3f05f73e)

On require of the package, index.js loads bootstrap.js inside a swallowed try/catch. bootstrap.js selects a per-OS/arch payload path and downloads bytes from one of several hardcoded Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS TXT-record fallback under tin.dl.well1.site / tina.dl.well1.site / ldr.dl.well1.site / win.dl.well1.site. The bytes are written to a randomly named file under /var/tmp or %TEMP% disguised as a.NET diagnostic or cache file (e.g. dotnetdiag*.exe,.cache_*), chmod 0755'd, and spawned detached via /bin/sh -c or cmd /c start. Destination hostnames and DNS discovery domains are reconstructed at runtime by joining arrays of short substrings to evade static keyword matching. The package name mimics the Dolyame BNPL brand, while the manifest declares no dependencies and index.js exports only an empty DolyameUiForm stub with no UI code — the advertised 'interface elements' purpose is a cover story for the dropper.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T12:32:43Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-014699",
            "import_time": "2026-08-05T13:08:38.73765941Z",
            "sha256": "5714ca0e12469cd96b5fef550b4f9715da5b806e8bd365ecfbea757c3f05f73e",
            "versions": [
                "20.1.7"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-form

Package

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

Affected ranges

Affected versions

20.*
20.1.7

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "dolyame-ui-form-20.1.7.tgz",
            "hashes": {
                "sha512_sri": "sha512-NighbJ/bbELcM+71Dhdv6QlNI9cWiuVntUVGm/TL8483WjLSIozMmT8MfN5LBEuNtcIGkeMZ+5sE4PPKnpMS2g==",
                "sha1": "a06ce7af0480f5424ee9e3cf3dd928d0b4845804"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "27b175aa167970194bb0d7e4c7175416f666f26337808294f79ca9984fb322483b3efc",
            "sha256": "5fdc2d6a59108e8e70c544b0276f8678ebb391be2a97a55d325488905ffc591b",
            "path": "_bootstrap.js"
        },
        {
            "tlsh": "1ff02b8515dfb862c2b0b3f6ce720052f66686355a470154bf8a90ff0fa0c200299fba",
            "sha256": "a64774843695afe8490d7d6ab70373612b6b5d8c58012fb77e83eda53df4455b",
            "path": "index.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-form/MAL-2026-12367.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]