mal-2025-6549
Vulnerability from ossf_malicious_packages
Published
2025-07-16 19:47
Modified
2025-12-11 09:27
Summary
Malicious code in memtools (PyPI)
Details

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

Source: kam193 (fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3)

Installing the package triggers a code that looks like downloading a picture, but in fact downloads and starts an executable with malware. Note that file supplied from the URL differs depending on the presence of the special header


Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-07-memlib

Reasons (based on the campaign):

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

  • Downloads and executes a remote executable.

  • malware


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "memtools",
        "purl": "pkg:pypi/memtools"
      },
      "versions": [
        "2.0.0"
      ]
    }
  ],
  "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": {
    "iocs": {
      "urls": [
        "https://image-logo-popup-files.vercel.app/public/image.jpg"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-03646",
        "import_time": "2025-08-01T10:07:12.662341077Z",
        "modified_time": "2025-07-31T19:15:44Z",
        "sha256": "7610337007cb1518ff3ab5fddfce5cdf36a4df92b45d0f389d7e4d333e425780",
        "source": "reversing-labs",
        "versions": [
          "2.0.0"
        ]
      },
      {
        "id": "pypi/2025-07-memlib/memtools",
        "import_time": "2025-12-02T22:30:55.335247775Z",
        "modified_time": "2025-07-16T19:47:30.822878Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "442cad9234093b04b5d1e1609b4059b82184819bcbcaf06d71e2e11875b18d5e",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-memlib/memtools",
        "import_time": "2025-12-02T23:07:18.364197388Z",
        "modified_time": "2025-07-16T19:47:30.822878Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-memlib/memtools",
        "import_time": "2025-12-10T21:38:57.592839204Z",
        "modified_time": "2025-07-16T19:47:30.822878Z",
        "sha256": "c2e5cff183529e337de2e1618244554c8c3d612b7b3383cf24bd2dcead166fe0",
        "source": "kam193",
        "versions": [
          "2.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3)\nInstalling the package triggers a code that looks like downloading a picture, but in fact downloads and starts an executable with malware. Note that file supplied from the URL differs depending on the presence of the special header\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-07-memlib\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\n\n - Downloads and executes a remote executable.\n\n\n - malware\n",
  "id": "MAL-2025-6549",
  "modified": "2025-12-11T09:27:53Z",
  "published": "2025-07-16T19:47:30Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/0fc1e062c521184f7e0c9f23dfdeb5431414e35cb55886e87c5ff5ec92ff4603"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/memtools"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in memtools (PyPI)"
}


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Sightings

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  • 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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  • 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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