Malicious PDF — malware analysis report

Static analysis result for SHA-256 186c9f7da564121c…

MALICIOUS

PDF

17.6 KB Created: 2019-08-02 07:36:26 +01:00 Authoring application: mPDF 5.7
MD5: b48f1cd813b48554fe6d5a4606396ff1 SHA-1: 7f92d5abdcfc62bf06207410108c3214fceb81f6 SHA-256: 186c9f7da564121cee7d4cccae4ea88e5a99ce2500e59fd2c20db4e20f36c65b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are marked as confirmed benign, the sheer volume and structure suggest a malicious intent, possibly to manipulate search engine results or redirect users to malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

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/6735736736733/Lord-of-the-White-Hell-Book-1-Lord-of-the-White-Hell-1-by-Ginn-Hale.pdf
    • http://cefasfese.4pu.com/4735730730737734/Lord-of-the-White-Hell-Book-One-Lord-of-the-White-Hell-1-by-Ginn-Hale.pdf
    • http://cefasfese.4pu.com/2737732734732730/The-White-Lord-of-Wellesbourne-by-Kathryn-Le-Veque.pdf
    • http://cefasfese.4pu.com/5739731731731731/Lord-Hailey-the-Colonial-Office-and-the-Politics-of-Race-and-Empire-in-the-Seco-The-Loss-of-White-Prestige-by-Suke-Wolton.pdf
    • http://cefasfese.4pu.com/1732735730738/My-Lord-Protector-by-Deborah-Hale.pdf
    • http://cefasfese.4pu.com/3736738732736738/Articles-on-Outlander-Including-Diana-Gabaldon-Lord-John-and-the-Private-Matter-Lord-John-and-the-Brotherhood-of-the-Blade-Lord-John-and-the-Scot-by-Hephaestus-Books.pdf
    • http://cefasfese.4pu.com/1735736731735735/Rogues-in-Hell-Heroes-in-Hell-14-by-Janet-E-Morris.pdf
    • http://cefasfese.4pu.com/1736730737737733/Bridge-Over-Hell-Heroes-in-Hell-15-by-Michael-A-Armstrong.pdf
    • http://cefasfese.4pu.com/9734733737738/Pirates-in-Hell-Heroes-in-Hell-20-by-Janet-E-Morris.pdf
    • http://cefasfese.4pu.com/4730735735732730/Vacation-Hell-Princess-of-Hell-4-by-Eve-Langlais.pdf
    • http://cefasfese.4pu.com/2730736731732730/Snowballs-in-Hell-Princess-of-Hell-2-by-Eve-Langlais.pdf
    • http://cefasfese.4pu.com/3735732738739736/Shy-Hunter-by-Ginn-Hale.pdf
    • http://cefasfese.4pu.com/4736737734739734/Apple-White-s-Story-Ever-After-High-0-1-by-Shannon-Hale.pdf
    • http://cefasfese.4pu.com/2738737737735735/Wicked-Gentlemen-by-Ginn-Hale.pdf
    • http://cefasfese.4pu.com/3739733732732738/The-Forbidden-Lord-Lord-Trilogy-2-by-Sabrina-Jeffries.pdf
    • http://cefasfese.4pu.com/1736731736736739/Hell-s-Angel-The-Life-and-Times-of-Sonny-Barger-and-the-Hell-s-Angels-Motorcycle-Club-by-Ralph-Barger.pdf
    • http://cefasfese.4pu.com/3730732730730737/Enemies-amp-Shadows-Rifter-7-by-Ginn-Hale.pdf
    • http://cefasfese.4pu.com/1738731739738735/See-You-in-Hell-Mel-Goes-to-Hell-2-by-Demelza-Carlton.pdf
    • http://cefasfese.4pu.com/1734738734734739/My-Way-to-Hell-Hell-2-by-Dakota-Cassidy.pdf
    • http://cefasfese.4pu.com/2736733732736737/See-You-in-Hell-Mel-Goes-to-Hell-2-by-Demelza-Carlton.pdf

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