mal-2026-2908
Vulnerability from ossf_malicious_packages
Published
2026-04-16 01:34
Modified
2026-04-23 20:50
Summary
Malicious code in pretty-logger-js (npm)
Details

pretty-logger-js is a malicious npm package that when imported downloads and executes a C2 dropper from https://www.jsonkeeper[.]com/b/OTOAQ.

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

Source: amazon-inspector (29e46da449e6d21efcef5e9975a2f8e90c31369882800ed4c560ae47ade99b53)

The package pretty-logger-js was found to contain malicious code.

Credits
Amazon Inspector actran@amazon.com
indece indece.com
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "pretty-logger-js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://indece.com"
      ],
      "name": "indece",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "iocs": {
      "urls": [
        "https://www.jsonkeeper.com/b/OTOAQ"
      ]
    },
    "malicious-packages-origins": [
      {
        "import_time": "2026-04-23T20:49:05.9928924Z",
        "modified_time": "2026-04-23T20:43:56Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "29e46da449e6d21efcef5e9975a2f8e90c31369882800ed4c560ae47ade99b53",
        "source": "amazon-inspector"
      }
    ]
  },
  "details": "pretty-logger-js is a malicious npm package that when imported downloads and executes a C2 dropper from https://www.jsonkeeper[.]com/b/OTOAQ.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (29e46da449e6d21efcef5e9975a2f8e90c31369882800ed4c560ae47ade99b53)\nThe package pretty-logger-js was found to contain malicious code.\n",
  "id": "MAL-2026-2908",
  "modified": "2026-04-23T20:50:51Z",
  "published": "2026-04-16T01:34:06Z",
  "schema_version": "1.7.4",
  "summary": "Malicious code in pretty-logger-js (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

Author Source Type Date Other

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.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.