MAL-2026-15814
Vulnerability from ossf_malicious_packages
Published
2026-09-02 00:00
Modified
2026-09-04 05:26
Summary
Malicious code in chromatitle-dev (npm)
Details

The package 'chromatitle-dev' was identified as containing malicious obfuscated code. In src/utils/bootstrap.js, there is base64 encoded URL.


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

Source: amazon-inspector (b720b488c4ac40cc60b8a514f2d16bf2858c4b501171816d38597aba076fe941)

src/index.js unconditionally calls bootstrap() at module load. On win32, src/utils/bootstrap.js base64-decodes a URL, filename, and staging directory (stored in an _S object and decoded via Buffer.from(str,'base64').toString('utf-8')) that resolve to https://github.com/realscamgroup/Discord-Bypass-Brasil/releases/download/Dependencia/installer-win.exe, %USERPROFILE%\Desktop.chromatitle\installer-win.exe, and.chromatitle. The file is downloaded and spawned with stdio:inherit. The destination repository is unrelated to the package's stated purpose of terminal color/title formatting, is owned by an account named 'realscamgroup', and the URL/filename/directory are base64-encoded solely to hide these indicators from static string scanning. Any Windows consumer that require()s or import()s chromatitle-dev executes the fetched binary automatically.

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

{
  "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": "src/utils/bootstrap.js",
              "sha256": "7fe865a4787104120503000c7d4bea2b9b3819b22533d5a9b60da21730a2a146",
              "tlsh": "3541434605f325b5017b60f81b4fe817a26160032969df887f8d87a8ef9d07c89f2ac9"
            }
          ],
          "package_integrity": [
            {
              "filename": "chromatitle-dev-1.0.0.tgz",
              "hashes": {
                "sha1": "78ad370481f7fbeac773307c52e553f383cc4ba7",
                "sha512_sri": "sha512-QIDUSYcDuhOWBCFUWUFYhPS9+aUqOHDV9tYpU13QiB7JY8fQC2WFMacagkYOjz9UTdJ0UQjxEAKa8KuA4wz4fQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "chromatitle-dev"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/cyberstormdotmu"
      ],
      "name": "Cyberstorm.mu team",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-019333",
        "import_time": "2026-09-02T04:23:33.821549032Z",
        "modified_time": "2026-09-02T03:58:23Z",
        "sha256": "b720b488c4ac40cc60b8a514f2d16bf2858c4b501171816d38597aba076fe941",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "The package \u0027chromatitle-dev\u0027 was identified as containing malicious obfuscated code. In src/utils/bootstrap.js, there is base64 encoded URL.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (b720b488c4ac40cc60b8a514f2d16bf2858c4b501171816d38597aba076fe941)\nsrc/index.js unconditionally calls bootstrap() at module load. On win32, src/utils/bootstrap.js base64-decodes a URL, filename, and staging directory (stored in an _S object and decoded via Buffer.from(str,\u0027base64\u0027).toString(\u0027utf-8\u0027)) that resolve to https://github.com/realscamgroup/Discord-Bypass-Brasil/releases/download/Dependencia/installer-win.exe, %USERPROFILE%\\Desktop\\.chromatitle\\installer-win.exe, and.chromatitle. The file is downloaded and spawned with stdio:inherit. The destination repository is unrelated to the package\u0027s stated purpose of terminal color/title formatting, is owned by an account named \u0027realscamgroup\u0027, and the URL/filename/directory are base64-encoded solely to hide these indicators from static string scanning. Any Windows consumer that require()s or import()s chromatitle-dev executes the fetched binary automatically.\n",
  "id": "MAL-2026-15814",
  "modified": "2026-09-04T05:26:43.905512194Z",
  "published": "2026-09-02T00:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/chromatitle-dev/v/1.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in chromatitle-dev (npm)"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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