Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7fee81364ae3939…

MALICIOUS

PDF

26.7 KB Created: 2019-05-02 01:57:59 +01:00 Authoring application: mPDF 5.7
MD5: 7cde7f40a382f951a4c48af5988a0b8c SHA-1: 41f08feb6162a516bb9f22440fba22ed26a9d56b SHA-256: f7fee81364ae3939340299deb53c242832da97869d5bb80246eb2f8a63f8e9f2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to academic papers, a technique often used for SEO spam or to obscure malicious redirects. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://cmeinasaoo.duckdns.org/3b26b29b22b21b22/Mathematics-Science-and-Epistemology-Volume-2-Philosophical-Papers-Philosophical-Papers-by-Imre-Lakatos.pdf
    • http://cmeinasaoo.duckdns.org/2b29b22b25b23b20/Philosophical-Papers-Volume-2-Mathematics-Science-and-Epistemology-by-Imre-Lakatos.pdf
    • http://cmeinasaoo.duckdns.org/1b20b27b25b28b25b24/The-Arche-Papers-on-the-Mathematics-of-Abstraction-by-Roy-T-Cook.pdf
    • http://cmeinasaoo.duckdns.org/1b20b20b22b23b22b24/Selected-Philosophical-Works-Volume-I-by-Georgi-Plekhanov.pdf
    • http://cmeinasaoo.duckdns.org/6b23b26b25b28b20/Philosophical-Works-Rendered-Into-English-Volume-1-by-Ren-Descartes.pdf
    • http://cmeinasaoo.duckdns.org/1b25b27b22b27/Science-and-Sentiment-in-America-Philosophical-Thought-from-Jonathan-Edwards-to-John-Dewey-by-Morton-Gabriel-White.pdf
    • http://cmeinasaoo.duckdns.org/2b25b25b20b27b22/Proofs-and-Refutations-The-Logic-of-Mathematical-Discovery-by-Imre-Lakatos.pdf
    • http://cmeinasaoo.duckdns.org/8b23b21b28b26b22/Imre-Lakatos-and-the-Guises-of-Reason-by-John-David-Kadvany.pdf
    • http://cmeinasaoo.duckdns.org/1b23b29b28b23b29/Concluding-Unscientific-Postscript-to-Philosophical-Fragments-Volume-1-by-S-ren-Kierkegaard.pdf
    • http://cmeinasaoo.duckdns.org/3b29b24b29b29b20/The-Beginnings-of-Western-Science-The-European-Scientific-Tradition-in-Philosophical-Religious-and-Institutional-Context-600-B-C-to-A-D-1450-by-David-C-Lindberg.pdf
    • http://cmeinasaoo.duckdns.org/6b24b25b28b25b26/Writing-Science-How-to-Write-Papers-That-Get-Cited-and-Proposals-That-Get-Funded-by-Joshua-Schimel.pdf
    • http://cmeinasaoo.duckdns.org/6b21b29b28b28b26/The-Serpent-Papers-Serpent-Papers-Trilogy-1-by-Jessica-Cornwell.pdf
    • http://cmeinasaoo.duckdns.org/9b27b29b21b25b20/Is-Nature-Supernatural-A-Philosophical-Exploration-of-Science-and-Nature-by-Simon-L-Altmann.pdf
    • http://cmeinasaoo.duckdns.org/5b20b29b24b27b29/The-Papers-of-Ulysses-S-Grant-Volume-9-July-7---December-31-1863-by-John-Y-Simon.pdf
    • http://cmeinasaoo.duckdns.org/5b23b24b27b23b26/Reviews-on-Corrosion-Inhibitor-Science-and-Technology-Papers-Presented-at-the-Corrosion-96-Symposium-by-A-Raman.pdf
    • http://cmeinasaoo.duckdns.org/5b23b24b26b26b22/Reviews-On-Corrosion-Inhibitors-Science-And-Technology-Papers-Presented-At-The-Corrosion-89-Symposium-quot-Review-Of-Corrosion-Inhibition-Science-quot-Sponsored-Group-T-3-A-15-N-Inhibitors-State-Of-The-A-by-Paul-Labine.pdf
    • http://cmeinasaoo.duckdns.org/3b29b25b24b22b22/The-Philosophical-Writings-of-Descartes-Volume-I-by-Ren-Descartes.pdf
    • http://cmeinasaoo.duckdns.org/4b29b26b26b28/The-Popularity-Papers-The-Popularity-Papers-1-by-Amy-Ignatow.pdf
    • http://cmeinasaoo.duckdns.org/1b21b26b28b26b23b26/The-Farnham-Papers-Volume-8-by-Mary-Frances-Comp-Farnham.pdf
    • http://cmeinasaoo.duckdns.org/6b21b29b25b24b27/VOLTAIRE---Premium-Collection-Novels-Philosophical-Writings-Historical-Works-Plays-Poems-amp-Letters-60-Works-in-One-Volume---Illustrated-Candide-the-Atheist-Dialogues-Oedipus-Caesar-by-Voltaire.pdf

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