MAL-2026-13026

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-molecule-mobile-bnpl-selector/MAL-2026-13026.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13026
Published
2026-08-05T14:33:07Z
Modified
2026-08-05T15:51:48Z
Summary
Malicious code in bnpl-molecule-mobile-bnpl-selector (npm)
Details

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

Source: amazon-inspector (daf9828096a3c18e00ad577689ebcf4e4fa304a8702db4a0993063c95182530e)

On require() of the package, index.js loads adapter.js, which runs an asynchronous dropper: it selects a platform-specific asset, downloads an executable via https.get from one of three Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev), writes the payload to /var/tmp/.cache with chmod 0755 on Unix or to the Windows temp directory as dotnet_diag_.exe (masquerading as a.NET diagnostic tool), and spawns it detached via /bin/sh -c ' &' or cmd.exe /c start /b. Destination hostnames, the child_process require, and chmodSync are hidden behind array-join string splits (e.g. "child_"+"process", ["oob-worker.cf102-baf.wor","kers",".d","ev"].join("")). A DNS-over-TXT fallback resolves c.sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru for a chunk count, then reassembles a base64 payload from numbered TXT records under those subdomains and executes it identically, providing a covert transport that evades HTTP egress filtering. The dropper is framed with a fake "Analytics SDK" / DISABLE_TELEMETRY cover story. A second copy of the same dropper primitives is bundled under lib/telemetry.js (~81 KB) but is not required on the current execution path.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-015346",
            "import_time":  "2026-08-05T15:19:46.089617779Z",
            "modified_time":  "2026-08-05T14:33:07Z",
            "sha256":  "daf9828096a3c18e00ad577689ebcf4e4fa304a8702db4a0993063c95182530e",
            "source":  "amazon-inspector",
            "versions":  [
                "35.1.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-molecule-mobile-bnpl-selector

Package

Name
bnpl-molecule-mobile-bnpl-selector
View open source insights on deps.dev
Purl
pkg:npm/bnpl-molecule-mobile-bnpl-selector

Affected ranges

Affected versions

35.*
35.1.1

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":  "_adapter.js",
            "sha256":  "f19e57f1f65bb8613b3dc56d1bed5c743e800d684a5d6d36900416a89101c146",
            "tlsh":  "fda1749a16a670188bb0abf587164416f65af66337c0d2d4f79c69884fb312483b1efc"
        },
        {
            "path":  "lib/telemetry.js",
            "sha256":  "bc39b107e5041e56eeecd1e857e0e1756b32992523c59d698ebbfd9969f80245",
            "tlsh":  "0d835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "bnpl-molecule-mobile-bnpl-selector-35.1.1.tgz",
            "hashes":  {
                "sha1":  "66a73f049edb4e6f56931250fa42fae543cd2959",
                "sha512_sri":  "sha512-SLqjMqM8gxO7nrgHeZ5n92lAIafpZNEyQyVfF8lfNre1qexGXLhNFd61yCuYope93zI5fNr4Yz7BwqmpxlVD0g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-molecule-mobile-bnpl-selector/MAL-2026-13026.json"