Malicious PDF — malware analysis report

Static analysis result for SHA-256 076175bbbb86847e…

MALICIOUS

PDF

28.5 KB Created: 2019-11-07 21:44:01 +00:00 Authoring application: mPDF 5.7
MD5: e5a92a9e568a8811f62e04e3c65e6728 SHA-1: 8d56f19a9633100db43fbe7179119cd408881e55 SHA-256: 076175bbbb86847e8783ff4a1bdfef27ac21e008a0116e2d58feda6069d69763
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, pointing to various book-related URLs. While the ML_NYX_PDF_MALICIOUS classifier indicates malicious intent, the specific purpose appears to be SEO manipulation or potentially distributing further payloads through these links. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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/9733737730739739/Gluten-Free-101-The-Essential-Beginner-s-Guide-to-Easy-Gluten-Free-Cooking-by-Carol-Fenster.pdf
    • http://cefasfese.4pu.com/9735736730730733/Low-Carb-So-Simple---Easy-Everyday-Recipes-with-5-Ingredients-or-Less-Gluten-Free-Sugar-Free-Grain-Free-Sweetener-Free-Wheat-Free-Grain-Free-by-Elviira-Krebber.pdf
    • http://cefasfese.4pu.com/9733736739737731/100-Best-Gluten-Free-Recipes-by-Carol-Fenster.pdf
    • http://cefasfese.4pu.com/5737738739739/24-Cheap-and-Easy-Gluten-Free-Breakfast-Recipes-Cheap-Gluten-Free-Recipes-Book-1-by-Michael-Zhang.pdf
    • http://cefasfese.4pu.com/1730737731735733737/Allergy-Friendly-Food-for-Families-120-Gluten-Free-Dairy-Free-Nut-Free-Egg-Free-and-Soy-Free-Recipes-Everyone-Will-Enjoy-by-Kiwi-Magazine.pdf
    • http://cefasfese.4pu.com/6733735737732738/Healthy-French-Cooking-With-easy-Gluten-free-Paleo-diet-menus---34-recipes-by-Thierry-Payet.pdf
    • http://cefasfese.4pu.com/1730733735736732731/The-Gluten-Free-Multi-National-Cook-Book-Tasty-Gluten-Free-recipes-from-around-the-world-I-Cuochi-Book-1-by-Rebecca-Lee.pdf
    • http://cefasfese.4pu.com/9735731736735/The-G-Free-Diet-A-Gluten-Free-Survival-Guide-by-Elisabeth-Hasselbeck.pdf
    • http://cefasfese.4pu.com/8731732735731730/Easy-Gluten-Free-80-Plus-Quick-and-Easy-Recipe-by-Vesco-Inc.pdf
    • http://cefasfese.4pu.com/5731739732737/18-Cheap-Gluten-Free-Dessert-Recipes-Cheap-Gluten-Free-Recipes-Book-2-by-Michael-Zhang.pdf
    • http://cefasfese.4pu.com/3730739736736737/Simply-Gluten-Free-Cupcakes-by-Carol-Kicinski.pdf
    • http://cefasfese.4pu.com/3730738736730731/Simply-Gluten-Free-Appetizers-by-Carol-Kicinski.pdf
    • http://cefasfese.4pu.com/3730739732739735/Simply-Gluten-Free-Summer-Entertaining-by-Carol-Kicinski.pdf
    • http://cefasfese.4pu.com/1731736735734737738/Mediterranean-Paleo-Cooking-Over-150-Fresh-Coastal-Recipes-for-a-Relaxed-Gluten-Free-Lifestyle-by-Caitlin-Weeks.pdf
    • http://cefasfese.4pu.com/1730731731737731732/Quick-amp-Easy-Paleo-Comfort-Foods-100-Delicious-Gluten-Free-Recipes-by-Julie-Mayfield.pdf
    • http://cefasfese.4pu.com/1730734735735736735/The-Autism-Mom-Cooks-Gluten-Free-Casein-Free-Traditional-Holiday-Fare-by-Stephanie-Hemenway.pdf
    • http://cefasfese.4pu.com/1731736732738730732/The-Dairy-Free-amp-Gluten-Free-Kitchen-by-Denise-Jardine.pdf
    • http://cefasfese.4pu.com/7734734733736731/Small-Plates-and-Sweet-Treats-My-Family-s-Journey-to-Gluten-Free-Cooking-from-the-Creator-of-Cannelle-et-Vanille-by-Aran-Goyoaga.pdf
    • http://cefasfese.4pu.com/1731737733737733734/The-Paleo-Foodie-Cookbook-120-Food-Lover-s-Recipes-for-Healthy-Gluten-Free-Grain-Free-amp-Delicious-Meals-by-Arsy-Vartanian.pdf
    • http://cefasfese.4pu.com/6734738730734739/Superfoods-Cookbook-Book-One-Over-75-Recipes-of-Quick-amp-Easy-Low-Fat-Gluten-Free-Wheat-Free-Low-Cholesterol-Whole-Foods-Superfoods-for-Weight-Loss-cookbook---weight-loss-plan-for-women-29-by-Don-Orwell.pdf

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