Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e49288e02d3a07e…

MALICIOUS

PDF

19.5 KB Created: 2019-11-03 20:32:51 +00:00 Authoring application: mPDF 5.7
MD5: 7cc4da7a5d068cb06e652dca7145d019 SHA-1: 74d58f6a4a2f8462dcdecf3f39a201e23ea24fd7 SHA-256: 6e49288e02d3a07e0fdc158326e9ea933f1714e1fdae7c27157382d1428a8d4f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, possibly to redirect users to harmful sites or to engage in link farming.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9411

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/4739738730737734/The-Customer-Rules-The-39-Essential-Rules-for-Delivering-Sensational-Service-by-Lee-Cockerell.pdf
    • http://cefasfese.4pu.com/2732736732737/Smile-Sell-More-with-Amazing-Customer-Service-The-Essential-60-Minute-Crash-Course-by-Kirt-Manecke.pdf
    • http://cefasfese.4pu.com/3730735731735731/The-Rules-for-Breaking-The-Rules-for-Disappearing-2-by-Ashley-Elston.pdf
    • http://cefasfese.4pu.com/3737732730730735/The-Trail-Rules-The-Rules-2-by-Melanie-Hooyenga.pdf
    • http://cefasfese.4pu.com/2731732736730730/Amelia-Rules-Volume-3-Superheroes-Amelia-Rules-3-by-Jimmy-Gownley.pdf
    • http://cefasfese.4pu.com/4731735739735736/Kaleidoscope-Delivering-Innovative-Service-That-Sparkles-by-Chip-R-Bell.pdf
    • http://cefasfese.4pu.com/1739736732730738/The-Chick-Friends-Rules-Freshman-Year-The-Chick-Friends-Rules-1-by-Vici-Howard.pdf
    • http://cefasfese.4pu.com/2734735731730736/Customer-Service-by-Felicity-Brandon.pdf
    • http://cefasfese.4pu.com/6733730731732738/Customer-Service-by-Beno-t-Duteurtre.pdf
    • http://cefasfese.4pu.com/1730732734732737/Raving-Fans-A-Revolutionary-Approach-to-Customer-Service-by-Kenneth-H-Blanchard.pdf
    • http://cefasfese.4pu.com/1730738734732734735/Care-Packages-for-Your-Customers-An-Idea-a-Week-to-Enhance-Customer-Service-by-Barbara-Glanz.pdf
    • http://cefasfese.4pu.com/4739733731736730/Customer-LLC-The-Small-Business-Guide-to-Customer-Engagement-amp-Marketing-by-Hillary-Berman.pdf
    • http://cefasfese.4pu.com/5734731732736736/The-Eternal-E-Customer-How-Emotionally-Intelligent-Interfaces-Can-Create-Long-Lasting-Customer-Relationships-by-Bryan-Bergeron.pdf
    • http://cefasfese.4pu.com/3730733736735735/Rules-for-Virgins-by-Amy-Tan.pdf
    • http://cefasfese.4pu.com/2737738739738735/Fat-Kid-Rules-the-World-by-K-L-Going.pdf
    • http://cefasfese.4pu.com/1731733736736730734/The-Rules-of-Seeing-by-Joe-Heap.pdf
    • http://cefasfese.4pu.com/1737737734736733/Here-She-Rules-by-Kat-Brewer.pdf
    • http://cefasfese.4pu.com/3736730733730732/The-Rules-by-Jamie-Fessenden.pdf
    • http://cefasfese.4pu.com/2734734731730738/Rules-for-Ghosting-by-A-J-Paquette.pdf
    • http://cefasfese.4pu.com/8734733737733733/New-Rules-of-Running-by-Vijay-Vad.pdf

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