Malicious PDF — malware analysis report

Static analysis result for SHA-256 187c8db4d100047d…

MALICIOUS

PDF

17.5 KB Created: 2019-05-01 12:43:29 +01:00 Authoring application: mPDF 5.7
MD5: 5705b02e39aad5c684f88b924d9597d0 SHA-1: 650ad39ae4ad86a3af0019af62d75d0443fc0deb SHA-256: 187c8db4d100047df88a86e4beae0599abef463a29d4157c03c670c0f800153f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to external PDF files. This technique is often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious, increasing confidence in its harmful intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://cefasfese.4pu.com/6732737731739737/Romain-Rolland-Oeuvres-Majeures-L-dition-int-grale-Jean-Christophe-Au-dessus-de-la-m-l-e-Vie-de-Tolsto-Vie-de-Beethoven-Colas-Breugnon--L-me-enchant-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733732734733/Cl-rambault-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733732730730/Robespierre-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733733733731/Romain-Rolland-And-A-World-At-War-by-William-T-Starr.pdf
    • http://cefasfese.4pu.com/5733736735734738/Jean-Christophe-Journey-s-End-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733731738738/Life-of-Vivekananda-and-the-Universal-Gospel-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/9738730731735732/Two-Plays-of-the-French-Revolution-The-Fourteenth-of-July-and-Danton-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733732735732/Romain-Rolland-and-the-Politics-of-Intellectual-Engagement-by-David-James-Fisher.pdf
    • http://cefasfese.4pu.com/1731733732730731736/Johann-Christof-Johann-Christof-Kinder-Und-Jugendjahre---2-johann-Christof-in-Paris---3-johann-Christof-Am-Ziel-by-Romain-Rolland.pdf
    • http://cefasfese.4pu.com/5734733732733739/Rosie-and-Rolland-in-the-Legendary-Show-and-Tell-by-Jon-Berg.pdf
    • http://cefasfese.4pu.com/5738730735736/The-Ski-Bum-by-Romain-Gary.pdf
    • http://cefasfese.4pu.com/5734733732737734/George-MacDonald-Victorian-Mythmaker-by-Rolland-Hein.pdf
    • http://cefasfese.4pu.com/3739735732735731/The-Life-Before-Us-by-Romain-Gary.pdf
    • http://cefasfese.4pu.com/5738736732733736/Lady-L-by-Romain-Gary.pdf
    • http://cefasfese.4pu.com/6732739738735/The-Life-Before-Us-by-Romain-Gary.pdf
    • http://cefasfese.4pu.com/2738731731737733/Ozark-Mountains-Dark-Side-Stories-by-Rolland-Love.pdf
    • http://cefasfese.4pu.com/6734737730733731/Solange-Chaput-Rolland-La-Soif-de-Liberte-by-Francine-Richer.pdf
    • http://cefasfese.4pu.com/5738735735734730/Carnets-de-Mariage-by-Romain-Ronzeau.pdf
    • http://cefasfese.4pu.com/5738736733733737/How-to-Do-Homework-Without-Throwing-Up-by-Trevor-Romain.pdf
    • http://cefasfese.4pu.com/5734733732737736/The-Tasmanian-Tiger-The-Elusive-Thylacine-Picture-Roo-Book-Series-by-Will-Rolland.pdf

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