mal-2025-6542
Vulnerability from ossf_malicious_packages
Published
2025-07-04 11:41
Modified
2025-12-11 09:27
Summary
Malicious code in malimaloo (PyPI)
Details

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

Source: kam193 (cfbfc14d4873b047e472e26b760198ecc402eb1ed35d59ab3ace8dc31936690f)

The only goal of the package is to execute a webhook or a suspicious file during installation.

Closely related to 2025-07-0x9xnx - created after previous packages were quarantined, similar names, similar usage, but no clearly malicious parts.


Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2025-07-malimalo

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "malimaloo",
        "purl": "pkg:pypi/malimaloo"
      },
      "versions": [
        "0.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-03638",
        "import_time": "2025-08-01T10:07:12.446952098Z",
        "modified_time": "2025-07-31T19:15:38Z",
        "sha256": "f410ef7535e010e1e283416e8c5d9f3bb1dc0bf1667b4143674e424167202125",
        "source": "reversing-labs",
        "versions": [
          "0.0.1"
        ]
      },
      {
        "id": "pypi/2025-07-malimalo/malimaloo",
        "import_time": "2025-12-02T22:30:56.191593478Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "93ab3691b0e53219db1c79882a085b949b0d3cde8d3efc4bb4e0bba86a68fb0b",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-malimalo/malimaloo",
        "import_time": "2025-12-02T23:07:19.37325303Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "cfbfc14d4873b047e472e26b760198ecc402eb1ed35d59ab3ace8dc31936690f",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-malimalo/malimaloo",
        "import_time": "2025-12-10T21:38:58.49907869Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "sha256": "4b344f7c45a7199088d9b12b4f990d79b8e38eb2821567bd42a388ad6420d0cd",
        "source": "kam193",
        "versions": [
          "0.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (cfbfc14d4873b047e472e26b760198ecc402eb1ed35d59ab3ace8dc31936690f)\nThe only goal of the package is to execute a webhook or a suspicious file during installation.\n\nClosely related to 2025-07-0x9xnx - created after previous packages were quarantined, similar names, similar usage, but no clearly malicious parts.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research \u0026 co, with clearly low-harm possibilities.\n\n\nCampaign: 2025-07-malimalo\n\n\nReasons (based on the campaign):\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n",
  "id": "MAL-2025-6542",
  "modified": "2025-12-11T09:27:53Z",
  "published": "2025-07-04T11:41:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/malimaloo"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in malimaloo (PyPI)"
}


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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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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