MAL-2026-13161

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-island/MAL-2026-13161.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13161
Published
2026-08-05T15:13:43Z
Modified
2026-08-05T15:52:51Z
Summary
Malicious code in dolyame-ui-island (npm)
Details

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

Source: amazon-inspector (4668c9441e4f15054a71b066764259aac91f52c51e48ff2656a63c9a09f96e5d)

On require() of dolyame-ui-island, index.js loads setup.js which downloads a platform-specific binary from obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS-TXT base64 fallback channel across numbered subdomains of wel1.ru (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). Hostnames are assembled at runtime via array.join() to defeat static analysis. The fetched bytes are written to a randomized tmp path mimicking a diagnostic tool (/var/tmp/.cache_ or dotnet_diag_.exe), chmodded to 0755 on POSIX, and spawned detached via cp.spawn("/bin/sh",["-c",fp+" &"],{detached:true}).unref(). Cover-story comments in setup.js reference 'analytics_state' and 'Content-type negotiation'. The package name impersonates a payments-UI library, but the shipped code has no such functionality.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015616",
            "import_time": "2026-08-05T15:20:00.364005163Z",
            "modified_time": "2026-08-05T15:13:43Z",
            "sha256": "4668c9441e4f15054a71b066764259aac91f52c51e48ff2656a63c9a09f96e5d",
            "source": "amazon-inspector",
            "versions": [
                "35.7.4"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-island

Package

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

Affected ranges

Affected versions

35.*
35.7.4

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": "setup.js",
            "sha256": "ade98d431bd52e63c6c77a69d64f6f811e5c74ca3826f995bd7cc1b0b75b437a",
            "tlsh": "23a1969a16a670198bb0dbf486174416f657e6a33380c1d4fb5ca9985f73124c372efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "dolyame-ui-island-35.7.4.tgz",
            "hashes": {
                "sha1": "00c1c0024942ffdde3dd2783640f4334394c0c00",
                "sha512_sri": "sha512-WrwTwxO+NfMfaXOlWo6wz9Yx64oF6RaO0iVIuA9GE50mGKf7V3hGqrXObHv/nzV321U8+sLJMOvju/ymt6iAHA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-island/MAL-2026-13161.json"