Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c96ef21e8072323…

MALICIOUS

PDF

16.2 KB Created: 2019-05-24 17:46:57 +01:00 Authoring application: mPDF 5.7
MD5: a9ca7434471b14e7a91d7972a539f7b9 SHA-1: 08000e14d4cda2fb40a217633833a8fbc16f1c71 SHA-256: 8c96ef21e8072323037416c386477b14ddc20b5e34b49ac71ca0be392246f976
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded links, many of which point to PDF files with numeric slugs in their URLs. This technique is often used for SEO poisoning or to distribute malicious content disguised as legitimate documents. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/8739738737732734/Star-Wars-Vor-dem-Erwachen-Die-offizielle-Vorgeschichte-zu-Star-Wars-Das-Erwachen-der-Macht-by-Greg-Rucka.pdf
    • http://cefasfese.4pu.com/8739731733739739/Der-Seelen-Erwachen-by-Rudolf-Steiner.pdf
    • http://cefasfese.4pu.com/8738736734734737/Erwachen-Schattenwelt-1-by-Ramon-Kania.pdf
    • http://cefasfese.4pu.com/8739737738732738/Elfenzeit-11-Merlins-Erwachen-by-Cathrin-Hartmann.pdf
    • http://cefasfese.4pu.com/9733732736730737/Erwachen-im-MenschSein-Das-Experiment-by-Kristina-Hazler.pdf
    • http://cefasfese.4pu.com/9732730739737735/Haus-der-H-terin-Band-2-Das-Erwachen-by-Andrea-Habeney.pdf
    • http://cefasfese.4pu.com/1730739732737734738/Vanessas-Erwachen-Jack-Hide-pr-sentiert-by-Chris-Black.pdf
    • http://cefasfese.4pu.com/1730736735739738730/Spiritualit-t-Erleuchtung-Erwachen-Wie-man-die-Essenz-des-Seins-erkennt-by-Anssi-Antila.pdf
    • http://cefasfese.4pu.com/3730734730738730/Zen-in-the-Art-of-Archery-by-Eugen-Herrigel.pdf
    • http://cefasfese.4pu.com/1730735739730734732/Die-Merowinger-Und-Das-Imperium-by-Eugen-Ewig.pdf
    • http://cefasfese.4pu.com/9730736737733731/Zen-in-der-Kunst-des-Bogenschie-ens-by-Eugen-Herrigel.pdf
    • http://cefasfese.4pu.com/1731734739739737736/Der-friede-in-Europa-by-Eugen-Schlief.pdf
    • http://cefasfese.4pu.com/9733735734734730/Quantum-Mechanics-by-Eugen-Merzbacher.pdf
    • http://cefasfese.4pu.com/1730736734732737736/The-Eisenberg-Constant-by-Eugen-Egner.pdf
    • http://cefasfese.4pu.com/1731735730732736734/Prinz-Eugen-von-Savoyen-by-Alfred-Arneth.pdf
    • http://cefasfese.4pu.com/9730731733737735/-sterreichs-Spuren-in-Venedig-by-Eugen-Semrau.pdf
    • http://cefasfese.4pu.com/9734730732733/Theory-and-practice-of-hell-by-Eugen-Kogon.pdf
    • http://cefasfese.4pu.com/2736734733739732/In-Times-of-Fading-Light-by-Eugen-Ruge.pdf
    • http://cefasfese.4pu.com/1731739731735735737/Der-Deutschenspiegel-in-seinem-sprachlichstilistischen-Verh-by-Freiherr-von-Eugen-M.pdf
    • http://cefasfese.4pu.com/1731734739739738730/Der-Friede-in-Europa-Eine-Volkerrechtlich-Politische-Studie-by-Eugen-Schlief.pdf
    • http://cefasfese.4pu.com/1730736735739738730/Spiritualit-t-Erleuchtung-Erwachen-Wie-man-die-Essenz-des-Seins-erkennt-by-Anssi-An

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