Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c7fe9190f033f0…

MALICIOUS

PDF

17.8 KB Created: 2019-08-02 07:37:09 +01:00 Authoring application: mPDF 5.7
MD5: 18b0f9f65661340c0bbf242ec83f1b3e SHA-1: a695b48e6ec2da0ad3e317f1378efb98fb9ee7dd SHA-256: 47c7fe9190f033f0538cb0f86781a9b9f3f1be9a97957996cf6cec1edca10219
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a link farm with 32 external links, primarily pointing to other PDFs. The heuristic PDF_SEO_LINK_FARM indicates this is a technique to distribute malicious content or lead users to phishing sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the exact lure.

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/8736730735739732/Raoul-Hausmann-Kunstler-Forscher-Philosoph-by-Cornelia-Frenkel.pdf
    • http://cefasfese.4pu.com/6733733730732735/Lectures-on-Ancient-Art-By-Raoul-Rochette-by-Raoul-Rochette.pdf
    • http://cefasfese.4pu.com/5735732738738734/Vera-Frenkel-by-Sigrid-Schade.pdf
    • http://cefasfese.4pu.com/9737738736735734/Understanding-Molecular-Simulation-From-Algorithms-to-Applications-by-Daan-Frenkel.pdf
    • http://cefasfese.4pu.com/2738736733739/Naked-Truths-About-Getting-Book-Reviews-by-Gisela-Hausmann.pdf
    • http://cefasfese.4pu.com/1730738733733733738/ATUATUKA-C-sars-Legionslager-in-Aachen-by-Axel-Hausmann.pdf
    • http://cefasfese.4pu.com/8736730735733738/Lexikon-Der-Forscher-Und-Erfinder-by-Rene-Zey.pdf
    • http://cefasfese.4pu.com/4735738733734730/Naked-Determination-41-Stories-About-Overcoming-Fear-by-Gisela-Hausmann.pdf
    • http://cefasfese.4pu.com/1730738739737735731/Fioritura-Blutezeiten-Der-Majolika-Eine-Berliner-Sammlung-by-Tjark-Hausmann.pdf
    • http://cefasfese.4pu.com/1730739738739735734/Lucreti-Philosoph-Fontibus-by-Woltjer.pdf
    • http://cefasfese.4pu.com/8736730736730736/Neuseeland-Weltreisen-und-Forscher-Abenteuer-by-Ferdinand-Emmerich.pdf
    • http://cefasfese.4pu.com/1730739739731734734/The-New-Philosoph-Volume-23-25-by-Swedenborg-Scientific-Association.pdf
    • http://cefasfese.4pu.com/1730739739730738732/The-New-Philosoph-Volume-12-13-by-Swedenborg-Scientific-Association.pdf
    • http://cefasfese.4pu.com/1730739739731733739/The-New-Philosoph-Volume-20-22-by-Swedenborg-Scientific-Association.pdf
    • http://cefasfese.4pu.com/8736730736737734/Novellierung-Des-Tierschutzgesetzes-1986-Informationen-Fur-Den-Forscher-by-Deutsche-Forschungsgemeinschaft.pdf
    • http://cefasfese.4pu.com/1730739739730733730/Galiani-Oekonom-Soziologe-Philosoph-by-Gottfried-Eisermann.pdf
    • http://cefasfese.4pu.com/1731734735732730731/Al-Kindi-Genannt-Der-Philosoph-Der-Araber-by-Gustav-Fl-gel.pdf
    • http://cefasfese.4pu.com/8736730736737730/Entdecker-Auf-den-Spuren-gro-er-Forscher-Abenteurer-und-Pioniere-by-Alistair-MacLeod.pdf
    • http://cefasfese.4pu.com/7737731738733734/Cornelia-Funke-Picture-Books-Set-by-Cornelia-Funke.pdf
    • http://cefasfese.4pu.com/8736730736738735/Lessing-Journal-Junge-Und-Jungste-Forscher-Auf-Lessings-Spuren-in-Wolfenbuttel-by-Madeleine-Kiehlmann.pdf
    • http://cefasfese.4pu.com/1730739738739735734/Lucreti-Philosoph-Fontibus-by-Woltjer.p