Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee737d0f3b9c52c…

MALICIOUS

PDF

14.9 KB Created: 2019-05-26 14:57:13 +01:00 Authoring application: mPDF 5.7
MD5: 21a6fea6e5e28a7280da2a6217af0260 SHA-1: d021519c42cc9b39efc8dcd89b37af82fa1627cb SHA-256: fee737d0f3b9c52c6f061cc84ad7d2e37be0e2ba97c6c6260c3aee192e5578a5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body contained mostly garbled data with some URLs. The primary attack pattern observed is the mass linking to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

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/4737737735739738/The-Knot-Fairy-With-CD-by-Bobbie-Hinman.pdf
    • http://cefasfese.4pu.com/1732733732736739/Bobbie-Faye-s-kinda-sorta-not-exactly-Family-Jewels-Bobbie-Faye-2-by-Toni-McGee-Causey.pdf
    • http://cefasfese.4pu.com/1731734739736731/Bobbie-Faye-s-Very-very-very-very-Bad-Day-Bobbie-Faye-1-by-Toni-McGee-Causey.pdf
    • http://cefasfese.4pu.com/7730738731733733/Sea-Trials-Around-the-World-with-Duct-Tape-and-Bailing-Wire-by-Wendy-Hinman.pdf
    • http://cefasfese.4pu.com/2733737737/The-Fairy-Boy-of-Calton-Hill-The-Fairy-Boy-Chronicles-1-by-Sean-Paul-Thomas.pdf
    • http://cefasfese.4pu.com/1733732735734/A-Dog-s-Way-Home-by-Bobbie-Pyron.pdf
    • http://cefasfese.4pu.com/1734739736738735/The-Ring-by-Bobbie-Pyron.pdf
    • http://cefasfese.4pu.com/6730734735739738/Dreamcatcher-by-Bobbie-Russell.pdf
    • http://cefasfese.4pu.com/4730739735738737/The-Last-Fairy-Apple-Tree-Fairy-Realm-4-by-Emily-Rodda.pdf
    • http://cefasfese.4pu.com/3736734731739731/Lone-Tree-by-Bobbie-O-39-keefe.pdf
    • http://cefasfese.4pu.com/2733735737731736/Conspiracy-of-Secrets-by-Bobbie-Neate.pdf
    • http://cefasfese.4pu.com/9730739735730738/A-Koala-is-Not-a-Bear-by-Bobbie-Kalman.pdf
    • http://cefasfese.4pu.com/1730731731736738733/Verloren-in-der-Wildnis-by-Bobbie-Pyron.pdf
    • http://cefasfese.4pu.com/3738738732737730/Finding-the-Light-by-Bobbie-Coelho.pdf
    • http://cefasfese.4pu.com/2737733731733730/Shiloh-and-Other-Stories-by-Bobbie-Ann-Mason.pdf
    • http://cefasfese.4pu.com/3733732737735733/Fairy-Bound-Fairy-Compacts-3-by-Katey-Hawthorne.pdf
    • http://cefasfese.4pu.com/1734731738732733/Elvis-Presley-A-Life-by-Bobbie-Ann-Mason.pdf
    • http://cefasfese.4pu.com/4734731733734731/Dirty-Rocker-Boys-by-Bobbie-Brown.pdf
    • http://cefasfese.4pu.com/2739735735733736/Fairy-Lies-Fairy-Wings-2-by-E-D-Baker.pdf
    • http://cefasfese.4pu.com/1730738733739736730/Bobbie-Faye-Halb-so-wild-by-Toni-McGee-Causey.pdf
    • http://cefasfese.4pu.com/2733735737731736/Consp

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