MAL-2026-13563
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:31
Modified
2026-08-07 12:31
Summary
Malicious code in dolyame-ui-controlgroup (npm)
Details

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

Source: amazon-inspector (099af2a758510302726d266aeefb46cb91473a6a42c9484e068f465ea1509e84)

On require() of dolyame-ui-controlgroup, _compat.js selects a per-OS/arch URL and downloads a native binary from string-split-obfuscated hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-over-TXT fallback under sdk.dl.wel1.ru, writes it to a temp file with a hidden/randomized name (dotnet-diag-lookalike), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. The declared main lib/telemetry.js duplicates the dropper via a base64-decoded buffer written to disk, chmod 755, and /bin/sh -c spawn, so the payload fires from the main module even if the _compat require is removed. Hostnames and dangerous API identifiers (child_process, chmodSync) are assembled at runtime via .join("") and dynamic property access to evade string search. The download hosts, endpoints, and destination filenames are unrelated to the package's advertised monitoring/observability purpose.

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": "_compat.js",
              "sha256": "c6334ae01162108561db1d07e3ab70b92707b594938557490279921011409989",
              "tlsh": "00a1b76915fa30180392e5d4811f6816719af6937284d898fb4ca6d84fd7678c3f3afc"
            },
            {
              "path": "lib/telemetry.js",
              "sha256": "758f1a00e5a85560cd74c2138543a7a043cb8d3c6e112bb9a33e58bd1740ccfa",
              "tlsh": "16733f4966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
            }
          ],
          "package_integrity": [
            {
              "filename": "dolyame-ui-controlgroup-35.8.1.tgz",
              "hashes": {
                "sha1": "3c31e1e99d91592ca187a50d0f0bec07504cd4d6",
                "sha512_sri": "sha512-pFxknm73xklwvI1kxnVdqhLwxRWY6MOS+qp1P5rfz0rc71KpF9ml+2zt5qZIbUvRqmdCFvq55bp7gU+cQH9N2A=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "dolyame-ui-controlgroup"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017016",
        "import_time": "2026-08-07T12:51:22.32554659Z",
        "modified_time": "2026-08-07T12:31:35Z",
        "sha256": "099af2a758510302726d266aeefb46cb91473a6a42c9484e068f465ea1509e84",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (099af2a758510302726d266aeefb46cb91473a6a42c9484e068f465ea1509e84)\nOn require() of dolyame-ui-controlgroup, _compat.js selects a per-OS/arch URL and downloads a native binary from string-split-obfuscated hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-over-TXT fallback under sdk.dl.wel1.ru, writes it to a temp file with a hidden/randomized name (dotnet-diag-lookalike), chmods 0755, and spawns it detached via `/bin/sh -c` or `cmd.exe /c start /b`. The declared main lib/telemetry.js duplicates the dropper via a base64-decoded buffer written to disk, chmod 755, and `/bin/sh -c` spawn, so the payload fires from the main module even if the _compat require is removed. Hostnames and dangerous API identifiers (`child_process`, `chmodSync`) are assembled at runtime via `.join(\"\")` and dynamic property access to evade string search. The download hosts, endpoints, and destination filenames are unrelated to the package\u0027s advertised monitoring/observability purpose.\n",
  "id": "MAL-2026-13563",
  "modified": "2026-08-07T12:31:35Z",
  "published": "2026-08-07T12:31:35Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/dolyame-ui-controlgroup/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in dolyame-ui-controlgroup (npm)"
}



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Nomenclature

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