Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d36123f0d279358…

MALICIOUS

PDF

19.2 KB Created: 2019-05-03 05:32:53 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-17
MD5: 58d444376d59238be572ea4ec92856a0 SHA-1: 1821595743892b78870f7dde46c8377762104de6 SHA-256: 0d36123f0d2793586f2a234da4581f278b0418dc3734ef19a1c5cee4aba12c5f
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, masquerading as a collection of academic works. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a link farm designed to drive traffic to numerous external PDF files. While the document body is heavily obfuscated, the presence of many URLs and the heuristic strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/6a04a00a06a07a08/The-Immanuel-Kant-Collection-8-Classic-Works-by-Immanuel-Kant.pdf In PDF document text
    • http://muicuiu.dumb1.com/6a04a00a06a08a01/On-History-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a07a07a08/Selections-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a05a09a05/Immanuel-Kant-by-A-J-Mandt.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a07a00a05/Opus-Postumum-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a09a02a06a07a07/The-Metaphysical-Elements-of-Ethics-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a01a01a09a08a00/Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a07a01a00a03a03/Groundwork-for-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a00a06a05a00/Prolegomena-to-Any-Future-Metaphysics-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a04a05a01a08/Groundwork-of-the-Metaphysics-of-Morals-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a05a01a02/Perpetual-Peace-and-Other-Essays-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a05a01a01/Religion-within-the-Limits-of-Reason-Alone-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a04a07a09a01a01/The-Critique-of-Pure-Reason-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a07a00a09/Feminist-Interpretations-of-Immanuel-Kant-by-Robin-May-Schott.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a05a09a06/Anthropology-from-a-Pragmatic-Point-of-View-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a04a00a07a07a07/Grounding-for-the-Metaphysics-of-Morals-Metaphysical-Principles-of-Virtue-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a06a01a02a02a04/Erste-Einleitung-in-die-Kritik-der-Urteilskraft-Philosophische-Bibliothek-39b-by-Immanuel-Kant.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a02a04a07a06a00/Prol-gom-nes-toute-m-taphysique-future-qui-aura-le-droit-se-pr-senter-comme-science-by-Immanuel-Kant.pdfIn PDF document text
    • 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.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a05a07a02a07a02/A-Theory-of-Creation-A-Review-of-Vestiges-of-the-Natural-History-of-Creation-by-Francis-Bowen.pdfIn PDF document text

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