mal-2024-10148
Vulnerability from ossf_malicious_packages
Published
2024-08-23 15:57
Modified
2025-12-11 09:27
Summary
Malicious code in pyunzip (PyPI)
Details

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

Source: kam193 (e671073274c02d02bdf77f71684ba7a0a854a30cdd671ea431ff5b4ea6d54add)

Packages downloads remote executable. The final behaviour is unknown, but starts with bypassing UAC and other security controls. Some package clones are obfuscated.


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

Campaign: 2024-08-koalabuilder

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • obfuscation


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyunzip",
        "purl": "pkg:pypi/pyunzip"
      },
      "versions": [
        "0.0.1",
        "0.0.2",
        "0.0.4"
      ]
    }
  ],
  "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": "ANALYST"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "iocs": {
      "urls": [
        "https://filetransfer.io/data-package/X3ykbFZq/download"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "RLMA-2024-09088",
        "import_time": "2024-10-24T00:57:07.704920115Z",
        "modified_time": "2024-10-16T14:49:32Z",
        "sha256": "bd2e30d1ab22ee419d7721b5a633f4e5958ab8fd347b243361a17706e6924fd7",
        "source": "reversing-labs",
        "versions": [
          "0.0.1",
          "0.0.2",
          "0.0.4"
        ]
      },
      {
        "id": "pypi/2024-08-koalabuilder/pyunzip",
        "import_time": "2025-12-02T22:30:55.509921057Z",
        "modified_time": "2024-08-23T15:57:10Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "473172d8f1c8c8f198d855ddb970266963228355d4068a487909a87b082a581c",
        "source": "kam193"
      },
      {
        "id": "pypi/2024-08-koalabuilder/pyunzip",
        "import_time": "2025-12-02T23:07:18.535656376Z",
        "modified_time": "2024-08-23T15:57:10Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "e671073274c02d02bdf77f71684ba7a0a854a30cdd671ea431ff5b4ea6d54add",
        "source": "kam193"
      },
      {
        "id": "pypi/2024-08-koalabuilder/pyunzip",
        "import_time": "2025-12-10T21:38:57.755127756Z",
        "modified_time": "2024-08-23T15:57:10Z",
        "sha256": "8582d66c7b17abedaa934105a14863fb476ad16b05476a49112ea779411ba701",
        "source": "kam193",
        "versions": [
          "0.0.1",
          "0.0.2",
          "0.0.4"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (e671073274c02d02bdf77f71684ba7a0a854a30cdd671ea431ff5b4ea6d54add)\nPackages downloads remote executable. The final behaviour is unknown, but starts with bypassing UAC and other security controls. Some package clones are obfuscated.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2024-08-koalabuilder\n\n\nReasons (based on the campaign):\n\n\n - Downloads and executes a remote executable.\n\n\n - obfuscation\n",
  "id": "MAL-2024-10148",
  "modified": "2025-12-11T09:27:53Z",
  "published": "2024-08-23T15:57:10Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://tria.ge/240823-sxpmlavdnk/behavioral2"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/pyunzip"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in pyunzip (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.
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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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