Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dca9d67319879bc…

MALICIOUS

PDF

14.4 KB Created: 2019-11-03 20:33:05 +00:00 Authoring application: mPDF 5.7
MD5: 7a3f3d4e76d16b2d98e34e1bf5db3f23 SHA-1: f7e4298a96a66de2ee67fe23ea2c230eaca82385 SHA-256: 0dca9d67319879bc71d93aa4b92319148b31224f0c3280f482e099eb70123754
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a single domain, suggesting a link farm or SEO spam tactic. The ML classifier also flagged this PDF as malicious. While the URLs themselves are marked as benign, the sheer volume and suspicious domain structure indicate a malicious intent to redirect users. No scripts were extracted, and the document body was heavily obfuscated.

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/6732732739736735/The-Formidable-Genius-by-D-C-Ranatunga.pdf
    • http://cefasfese.4pu.com/2739735730733734/Evil-Genius-Family-Genius-Mysteries-1-by-Patricia-Rice.pdf
    • http://cefasfese.4pu.com/2739735730732733/Cyber-Genius-Family-Genius-Mysteries-3-by-Patricia-Rice.pdf
    • http://cefasfese.4pu.com/3737736730737/Evil-Genius-Genius-1-by-Catherine-Jinks.pdf
    • http://cefasfese.4pu.com/7731731736/Idiot-Genius-Willa-Snap-and-the-Clockwerk-Boy-Idiot-Genius-1-by-Richard-Due.pdf
    • http://cefasfese.4pu.com/6732732739739730/Formidable-Imposition-by-Tim-Johnson.pdf
    • http://cefasfese.4pu.com/6732732739739734/The-Formidable-Family-by-Dominic-J-Arcuri.pdf
    • http://cefasfese.4pu.com/3734732734734739/Puffy-and-the-Formidable-Foe-by-Marie-G-Lepkowski.pdf
    • http://cefasfese.4pu.com/6732732739732737/The-Formidable-King-by-Alyssa-J-Montgomery.pdf
    • http://cefasfese.4pu.com/6732733730736739/The-Most-Formidable-Thing-by-William-Jameson.pdf
    • http://cefasfese.4pu.com/6732732739732734/Conan-the-Formidable-by-Steve-Perry.pdf
    • http://cefasfese.4pu.com/6732733730730734/The-Formidable-Employee-by-Dominic-J-Arcuri.pdf
    • http://cefasfese.4pu.com/6732733730733738/Formidable-dragons-The-beginning-by-Andrew-Dutton.pdf
    • http://cefasfese.4pu.com/6732733730737734/Fast-and-Formidable-Animals-by-Agatha-Gregson.pdf
    • http://cefasfese.4pu.com/6732733730732738/The-Formidable-Stranger-Volume-1-by-Ronzeno-Edwards.pdf
    • http://cefasfese.4pu.com/6732733730736736/A-Formidable-Hero-2nd-Edition-by-Stuart-E-Soward.pdf
    • http://cefasfese.4pu.com/6732733730735739/Rosie-and-her-Formidable-Bark-by-Vivienne-Williams.pdf
    • http://cefasfese.4pu.com/6732732739732739/The-Problim-Children-2-A-Formidable-Foe-by-Natalie-Lloyd.pdf
    • http://cefasfese.4pu.com/6732733730734731/Formidable-Fighter-The-Complete-Series-by-Martina-Sprague.pdf
    • http://cefasfese.4pu.com/6732733730733730/Rohtas-Formidable-Fort-Of-Sher-Shah-by-Ihsan-H-Nadiem.pdf

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