Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e13f07ec1c4affd…

MALICIOUS

PDF

19.2 KB Created: 2019-05-07 03:44:18 +01:00 Authoring application: mPDF 5.7
MD5: 16f2ac68c50abaf3c4001da45a34e177 SHA-1: 12e285b128334a5fab66152970650946a8f5c3a9 SHA-256: 4e13f07ec1c4affd63207164e92206fac3790be615638cf9c7f5810d4dec066f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which are likely intended to redirect users to malicious content. The ML_NYX_PDF_MALICIOUS classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links suggests a link farm or redirection scheme to deliver a secondary payload. The URLs themselves appear to be benign, but their context within the PDF and the heuristic firing indicate a malicious intent.

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/6a04a03a00a00a01/Lectures-on-Calvinism-The-Stone-Lectures-of-1898-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/9a00a04a05a00a03/Lectures-on-the-Philosophy-of-Religion-One-Volume-Edition---The-Lectures-of-1827-by-Georg-Wilhelm-Friedrich-Hegel.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a09a00a01/Em-toda-a-extens-o-do-cosmos-textos-selecionados-de-Abraham-Kuyper-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/3a08a09a05a03/Essays-and-Lectures-Nature-Addresses-and-Lectures-Essays-First-and-Second-Series-Representative-Men-English-Traits-The-Conduct-of-Life-by-Ralph-Waldo-Emerson.pdf
    • http://muicuiu.dumb1.com/6a04a08a05a08a03/Gurdjieff-Lectures-by-A-R-Orage-Selections-from-the-lectures-of-A-R-Orage-by-Orage-Alfred.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a07a09a01/The-Kuyper-Center-Review-volume-4-Calvinism-and-Democracy-by-John-R-Bowlin.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a06a05a03/To-Be-Near-Unto-God-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a01a09/Our-Worship-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/2a07a05a04a02a05/The-Problem-of-Poverty-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a06a05a01/The-Work-of-the-Holy-Spirit-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a08a00a03/Abraham-Kuyper-His-Early-Journey-Of-Faith-by-G-Puchinger.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a07a09a09/Guidance-for-Christian-Engagement-in-Government-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/4a02a04a04a00a00/Abraham-Kuyper-A-Short-and-Personal-Introduction-by-Richard-J-Mouw.pdf
    • http://muicuiu.dumb1.com/4a02a04a09a04a07/Christianity-Total-World-And-Life-System-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a07a03a00/Pro-Rege-Living-Under-Christ-the-King-Volume-1-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/1a00a04a06a09a09a02/Scholarship-Two-Convocation-Addresses-On-University-Life-by-Abraham-Kuyper.pdf
    • http://muicuiu.dumb1.com/1a01a03a09a07a05a03/Lectures-On-Algebraic-Topology-by-H-Rund.pdf
    • http://muicuiu.dumb1.com/3a07a08a02a01a08/Complete-Lectures-of-the-Pathwork-by-Eva-Pierrakos.pdf
    • http://muicuiu.dumb1.com/7a07a04a01a04a02/Eight-Lectures-on-Yoga-by-Aleister-Crowley.pdf
    • http://muicuiu.dumb1.com/1a01a04a01a02a00a03/The-Barth-Lectures-by-Colin-E-Gunton.pdf
    • http://muicuiu.dumb1.com/3a08a09a05a03/Essays-and-Lectures-Nature-Addresses-and-Lectures-Essays-First-and-Second-Series-Representative-Men-English-Traits-The-Conduct-of-Life-by

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