MAL-2026-12966

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-preset-container/MAL-2026-12966.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12966
Published
2026-08-05T14:43:52Z
Modified
2026-08-05T15:51:19Z
Summary
Malicious code in bnpl-blocks-independent-bnpl-preset-container (npm)
Details

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

Source: amazon-inspector (dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a)

index.js unconditionally requires./support on module load. support.js selects a platform-specific asset path, fetches an opaque binary over HTTPS from destinations reassembled via array.join("") string-concatenation obfuscation (Cloudflare Workers subdomains under oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS TXT chunked retrieval fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (".cache", "dotnet_diag.exe"), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe with a /tmp timestamp marker gating re-execution. Marker/process names and honoring of DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK provide a telemetry cover story. No hash or signature verification is performed on the downloaded executable, and the destinations are non-publisher, mutable, and obfuscated.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-015418",
            "import_time":  "2026-08-05T15:19:50.301537774Z",
            "modified_time":  "2026-08-05T14:43:52Z",
            "sha256":  "dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a",
            "source":  "amazon-inspector",
            "versions":  [
                "35.3.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-independent-bnpl-preset-container

Package

Name
bnpl-blocks-independent-bnpl-preset-container
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-independent-bnpl-preset-container

Affected ranges

Affected versions

35.*
35.3.2

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":  "_support.js",
            "sha256":  "dc973eb865472379cefe64addbec36c4843e64e314e12a8bebfd82302212a934",
            "tlsh":  "a2b1986615aa70184bb0d7e4c6175416f66af763638085d8fb9c55c80ff221883f2efc"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "bnpl-blocks-independent-bnpl-preset-container-35.3.2.tgz",
            "hashes":  {
                "sha1":  "e47a34a5483d2944aaa0c4b82cdaa8d8802aa925",
                "sha512_sri":  "sha512-xJF+cv1ZUE1xYj2450hOYX1tGGftAg5qM0XdS4mIBYvLWPfKqp3gzWzqbHlF1d/OiemHtAoDaX0xkizjgiZOjA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-preset-container/MAL-2026-12966.json"