Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f9966ebe3c987e…

MALICIOUS

PDF

27.4 KB Created: 2019-05-07 05:15:07 +01:00 Authoring application: mPDF 5.7
MD5: 470a60fc1e84f1f83dd19d887bc06bc1 SHA-1: cd807dac60b3b95fa4463ff2c4bbc527517283cd SHA-256: f7f9966ebe3c987e569fd9c7f356d1616affe6614225a968ec18a2d8974c536b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, masquerading as recipe books. This technique is often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the exact payload.

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://muicuiu.dumb1.com/4a08a05a07a05a07/Seven-Spoons-My-Favorite-Recipes-for-Any-and-Every-Day-by-Tara-O-39-Brady.pdf
    • http://muicuiu.dumb1.com/5a08a04a09a07a05/JoAnn-and-Vickie-s-Favorite-Recipes-by-Gooseberry-Patch.pdf
    • http://muicuiu.dumb1.com/7a02a05a09a02/Tasting-Colorado-Favorite-Recipes-from-the-Centennial-State-by-Michele-Morris.pdf
    • http://muicuiu.dumb1.com/4a06a00a00a07a07/Global-Home-Cooking-International-Families-Favorite-Recipes-by-Nancy-Freund.pdf
    • http://muicuiu.dumb1.com/3a00a08a03a02a02/Toll-House-Heritage-Cookbook-A-Collection-Of-Favorite-Dessert-Recipes-by-Nestl-.pdf
    • http://muicuiu.dumb1.com/3a01a01a05a00a02/Santa-Fe-Recipe-A-Cookbook-of-Recipes-from-Favorite-Local-Restaurants-by-Joan-Stromquist.pdf
    • http://muicuiu.dumb1.com/7a05a09a02a04a05/Forrest-Gump-My-Favorite-Chocolate-Recipes-Mama-s-Fudg-Cookies-Cakes-and-Candies-by-Leisure-Arts-Inc-.pdf
    • http://muicuiu.dumb1.com/3a01a01a01a04a05/America-s-Bread-Book-300-Authentic-Recipes-for-America-s-Favorite-Homemade-Breads-Co-by-Mary-Gubser.pdf
    • http://muicuiu.dumb1.com/8a04a07a07a09a05/In-the-Kitchen-with-Rosie-Oprah-s-Favorite-Recipes-by-Rosie-Daley.pdf
    • http://muicuiu.dumb1.com/5a07a03a08a08a04/Saveur-Cooks-Authentic-Italian-Savoring-the-Recipes-and-Traditions-of-the-World-s-Favorite-Cuisine-by-Saveur-Magazine.pdf
    • http://muicuiu.dumb1.com/3a00a07a08a05a01/Top-Secret-Restaurant-Recipes-Creating-Kitchen-Clones-from-America-s-Favorite-Restaurant-Chains-by-Todd-Wilbur.pdf
    • http://muicuiu.dumb1.com/5a04a07a00a00/Segreto-Italiano-Secret-Italian-Recipes-amp-Favorite-Dishes-Italian-Cookbook-by-Daniel-Bellino-Zwicke.pdf
    • http://muicuiu.dumb1.com/7a09a04a02a01a07/Lidia-s-Favorite-Recipes-100-Foolproof-Italian-Dishes-from-Basic-Sauces-to-Irresistible-Entrees-by-Lidia-Matticchio-Bastianich.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a06a05a01/Top-Secret-Restaurant-Recipes-2-More-Amazing-Clones-of-Famous-Dishes-from-America-s-Favorite-Restaurant-Chains-by-Todd-Wilbur.pdf
    • http://muicuiu.dumb1.com/1a01a03a05a06a00a03/The-Easy-PCOS-Diet-Cookbook-Fuss-Free-Recipes-for-Busy-People-on-the-Insulin-Resistance-Diet-by-Tara-Spencer.pdf
    • http://muicuiu.dumb1.com/3a00a07a03a01a00/From-Emeril-s-Kitchens-Favorite-Recipes-from-Emeril-s-Restaurants-by-Emeril-Lagasse.pdf
    • http://muicuiu.dumb1.com/1a00a01a07a07a04a08/Top-Secret-Restaurant-Recipes-3-The-Secret-Formulas-for-Duplicating-Your-Favorite-Restaurant-Dishes-at-Home-by-Todd-Wilbur.pdf
    • http://muicuiu.dumb1.com/3a04a00a03a05a08/Christmas-with-Paula-Deen-Recipes-and-Stories-from-My-Favorite-Holiday-by-Paula-H-Deen.pdf
    • http://muicuiu.dumb1.com/4a04a00a01a06a09/Forks-Knives-and-Spoons-by-Leah-DeCesare.pdf
    • http://muicuiu.dumb1.com/3a00a07a05a05a08/Bread-Lover-s-Bread-Machine-Cookbook-A-Master-Baker-s-300-Favorite-Recipes-for-Perfect-Every-Time-Bread-From-Every-Kind-of-Machine-by-Beth-Hensperger.pdf
    • http://muicuiu.dumb1.com/7a05a09a02a04a05/Forrest-Gump-My-Favorite-Chocolate-Recipes-Mama-s-Fudg-Cookies-Cakes-and-Candies-by

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