MAL-2026-13577
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:35
Modified
2026-08-07 12:35
Summary
Malicious code in dolyame-ui-inputdate (npm)
Details

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

Source: amazon-inspector (338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484)

On require()/import, index.js loads./ext.js which selects a platform-specific remote endpoint, downloads an opaque binary via HTTPS from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a base64-over-DNS-TXT fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded bytes are written to a hidden temp file (.cache / dotnet_diag_.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd. Hostname reconstruction from split-string arrays and the DNS covert-channel fallback demonstrate deliberate evasion. The package's stated purpose ('API client wrappers') does not correspond to any of this behavior.

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": "_ext.js",
              "sha256": "f6693cf04ead0ffc0844db6ab84a3bbc9f5a00046a7f7341837e32ebcd0fdeb9",
              "tlsh": "92a1945916fa301507a2e5d8891f881a719ef99332c4d8d8fb4c6a948f96138c3f29fd"
            }
          ],
          "package_integrity": [
            {
              "filename": "dolyame-ui-inputdate-35.8.1.tgz",
              "hashes": {
                "sha1": "a25c59f82de6f58014544923916614d10c135993",
                "sha512_sri": "sha512-o6iBN06XsPjYP+3NDVh20o0A2H4wo267TaBm2DBhQC9Fwo9rGQzeHjAa6vs7L13YrNM1egdP3l1+nylbaUC4hA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "dolyame-ui-inputdate"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017045",
        "import_time": "2026-08-07T12:51:23.689822118Z",
        "modified_time": "2026-08-07T12:35:58Z",
        "sha256": "338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484)\nOn require()/import, index.js loads./_ext.js which selects a platform-specific remote endpoint, downloads an opaque binary via HTTPS from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a base64-over-DNS-TXT fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded bytes are written to a hidden temp file (.cache_\u003crand\u003e / dotnet_diag_\u003crand\u003e.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd. Hostname reconstruction from split-string arrays and the DNS covert-channel fallback demonstrate deliberate evasion. The package\u0027s stated purpose (\u0027API client wrappers\u0027) does not correspond to any of this behavior.\n",
  "id": "MAL-2026-13577",
  "modified": "2026-08-07T12:35:58Z",
  "published": "2026-08-07T12:35:58Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/dolyame-ui-inputdate/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in dolyame-ui-inputdate (npm)"
}



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