Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bbe5902950bad4d…

MALICIOUS

PDF

18.5 KB Created: 2019-04-30 02:02:46 +01:00 Authoring application: mPDF 5.7
MD5: fc04e3e9b37eebf71e2e5d8281c41f57 SHA-1: 3c2fc490e41458e36b5daa6555ac9a4059023f84 SHA-256: 1bbe5902950bad4d1bb2f6889553ed6971d2b92c500be7fe2792738a4308d959
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents hosted on the domain 'muicuiu.dumb1.com'. This is indicative of a link farm or SEO poisoning attack, designed to drive traffic to malicious or low-quality content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://muicuiu.dumb1.com/5a07a01a00a03a03/Groundwork-for-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/4a01a01a09a08a00/Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/4a04a05a01a08/Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/9a01a01a06a05a03/Prolegomena-zu-einer-jeden-k-nftigen-Metaphysik-die-als-Wissenschaft-wird-auftreten-k-nnen-Philosophische-Bibliothek-540-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a07a07a07/Grounding-for-the-Metaphysics-of-Morals-Metaphysical-Principles-of-Virtue-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a06a07a08/The-Immanuel-Kant-Collection-8-Classic-Works-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/5a02a04a07a06a00/Prol-gom-nes-toute-m-taphysique-future-qui-aura-le-droit-se-pr-senter-comme-science-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a06a08a01/On-History-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a07a07a08/Selections-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a05a09a05/Immanuel-Kant-by-A-J-Mandt.pdf
    • http://muicuiu.dumb1.com/6a04a00a07a00a05/Opus-Postumum-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/5a04a07a09a01a01/The-Critique-of-Pure-Reason-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a05a01a01/Religion-within-the-Limits-of-Reason-Alone-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a05a01a02/Perpetual-Peace-and-Other-Essays-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/2a09a02a06a07a07/The-Metaphysical-Elements-of-Ethics-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a05a09a06/Anthropology-from-a-Pragmatic-Point-of-View-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a07a00a09/Feminist-Interpretations-of-Immanuel-Kant-by-Robin-May-Schott.pdf
    • http://muicuiu.dumb1.com/4a04a08a05a07a03/Universal-Natural-History-and-Theory-of-the-Heavens-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/1a00a06a01a02a02a04/Erste-Einleitung-in-die-Kritik-der-Urteilskraft-Philosophische-Bibliothek-39b-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/9a01a02a01a09a06/Kritik-der-reinen-Vernunft-Kritik-der-praktischen-Vernunft-by-Immanuel-Kant.pdf
    • http://muicuiu.dumb1.com/6a04a00a06a07a08/The-Immanuel-Kant-Collection-8-Classic-W

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