MAL-2026-13534
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:31
Modified
2026-08-07 12:31
Summary
Malicious code in ded-pwa-c-boxy-di (npm)
Details

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

Source: amazon-inspector (eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037)

On require('ded-pwa-c-boxy-di'), index.js loads loader.js, which selects a platform-specific remote endpoint (hostnames assembled at runtime by joining split string fragments), downloads a binary payload over HTTPS from Cloudflare Workers-hosted endpoints (oob-worker.cf100-416.workers.dev and siblings) with a DNS-TXT base64 fallback channel via sdk.dl.wel1.ru, writes the bytes to a temporary path under a disguised name (e.g. dotnet_diag.exe,.cache_), chmods the file to 0755, and spawns it detached via /bin/sh -c or cmd. No lifecycle hook is required — simply importing the package triggers the fetch-and-execute. Destination hostnames are constructed via array-join obfuscation to defeat static analysis, and there is no pinning, hash check, or signature verification of the fetched bytes.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
Credits

{
  "affected": [
    {
      "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": "_loader.js",
              "sha256": "410a6d5754082af62d86be897632a5e402e84f17b2894ea9c6e3c17bcf6b3d6f",
              "tlsh": "8ba1b75612a670184bb0dbe4cb174816f65bf6633781c288f75ca5885f7352883b2efc"
            }
          ],
          "package_integrity": [
            {
              "filename": "ded-pwa-c-boxy-di-35.2.2.tgz",
              "hashes": {
                "sha1": "9aa9663c57dc91fc34f6e62fccbd1ee24615301d",
                "sha512_sri": "sha512-Rdz7+AjKavvXQZxNz+QDxnVkHPSqiC1tx1bvEFZ78Or950whsOFgItW2aRKnfKYXMdsMRXNLbyDq3iANT85Aqg=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "ded-pwa-c-boxy-di"
      },
      "versions": [
        "35.2.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017018",
        "import_time": "2026-08-07T12:51:22.398045512Z",
        "modified_time": "2026-08-07T12:31:52Z",
        "sha256": "eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037",
        "source": "amazon-inspector",
        "versions": [
          "35.2.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037)\nOn require(\u0027ded-pwa-c-boxy-di\u0027), index.js loads _loader.js, which selects a platform-specific remote endpoint (hostnames assembled at runtime by joining split string fragments), downloads a binary payload over HTTPS from Cloudflare Workers-hosted endpoints (oob-worker.cf100-416.workers.dev and siblings) with a DNS-TXT base64 fallback channel via sdk.dl.wel1.ru, writes the bytes to a temporary path under a disguised name (e.g. dotnet_diag_*.exe,.cache_*), chmods the file to 0755, and spawns it detached via /bin/sh -c or cmd. No lifecycle hook is required \u2014 simply importing the package triggers the fetch-and-execute. Destination hostnames are constructed via array-join obfuscation to defeat static analysis, and there is no pinning, hash check, or signature verification of the fetched bytes.\n",
  "id": "MAL-2026-13534",
  "modified": "2026-08-07T12:31:52Z",
  "published": "2026-08-07T12:31:52Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/ded-pwa-c-boxy-di/v/35.2.2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in ded-pwa-c-boxy-di (npm)"
}



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