Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0626b3d0b416c71…

MALICIOUS

PDF

25.7 KB Created: 2019-05-06 16:49:49 +01:00 Authoring application: mPDF 5.7
MD5: 03992db29c8428285a19c8257c06fd55 SHA-1: f8191616bdf63995d00774d3f2b69abd6dc1a92f SHA-256: f0626b3d0b416c71b1d728b42cf6804f5a3007f68a1c302d32ead01014860666
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a machine learning classifier with high confidence and contains a large number of embedded links, indicating a potential SEO poisoning or link farm attack. While the document body is unreadable, the heuristic 'PDF_SEO_LINK_FARM' strongly suggests the file's purpose is to host numerous external links. No scripts were extracted, and the majority of the extracted URLs were labeled as confirmed benign, but the sheer volume and nature of the links point to a malicious intent, likely for traffic redirection or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://loaminoo.linkpc.net/7097098092091090/Primal-Blueprint-Quick-and-Easy-Meals-Delicious-Primal-Approved-Meals-You-Can-Make-in-Under-30-Minutes-by-Mark-Sisson.pdf
    • http://loaminoo.linkpc.net/9097090095099091/The-Primal-Connection-Follow-Your-Genetic-Blueprint-to-Health-and-Happiness-by-Mark-Sisson.pdf
    • http://loaminoo.linkpc.net/3091090097090099/Pressure-Cooker-Meals-30-Quick-Easy-and-Delicious-One-Pot-Meals-For-Your-Pressure-Cooker-That-You-re-Family-Will-Love-The-Essential-Kitchen-Series-Book-17-by-Sarah-Sophia.pdf
    • http://loaminoo.linkpc.net/9097090096097095/Primal-Blueprint-21-Day-Total-Body-Transformation-A-Step-by-Step-Gene-Reprogramming-Action-Plan-by-Mark-Sisson.pdf
    • http://loaminoo.linkpc.net/3090097098096099/Quick-Fix-Meals-200-Simple-Delicious-Recipes-to-Make-Mealtime-Eas-by-Robin-Miller.pdf
    • http://loaminoo.linkpc.net/2097093092093098/The-FastDiet-Cookbook-150-Delicious-Calorie-Controlled-Meals-to-Make-Your-Fasting-Days-Easy-by-Mimi-Spencer.pdf
    • http://loaminoo.linkpc.net/9094099090098092/INSTANT-POT-RECIPES-A-Simple-Pressure-Cooker-Guide-for-Busy-People---Delicious-Meals-Quick-and-Easy-Recipes-Volume-2-by-JACKE-EVENKON.pdf
    • http://loaminoo.linkpc.net/8096090097094093/Gesundheitsgeheimnisse-aus-der-Steinzeit-Das-revolution-re-Primal-Health-Konzept-by-Mark-Sisson.pdf
    • http://loaminoo.linkpc.net/1091093095096096091/Easy-Vegetarian-One-Pot-Delicious-Fuss-Free-Recipes-for-Hearty-Meals-by-Ryland-Peters-amp-Small.pdf
    • http://loaminoo.linkpc.net/1091098092097098093/Mason-Jar-Meals-Soups-Salads-and-Desserts-Quick-and-easy-recipes-for-busy-people-by-Andrea-Stange.pdf
    • http://loaminoo.linkpc.net/3095097099091093/Paleo-Fast-Food-26-Super-Quick-And-Make-Ahead-Recipes-For-When-You-re-On-The-Go-Primal-Gluten-Free-Cookbook-by-Kate-Evans-Scott.pdf
    • http://loaminoo.linkpc.net/3090098095096094/The-Deen-Bros-Take-It-Easy-Quick-and-Affordable-Meals-the-Whole-Family-Will-Love-by-Jamie-Deen.pdf
    • http://loaminoo.linkpc.net/2097098096095095/Primal-Quest-Primal-Attractions-1-by-Rebecca-Airies.pdf
    • http://loaminoo.linkpc.net/5095092094093093/Primal-Nature-The-Primal-Series-1-by-Monique-Singleton.pdf
    • http://loaminoo.linkpc.net/1098095097094093/PRIMAL-Origin-PRIMAL-0-5-by-Jack-Silkstone.pdf
    • http://loaminoo.linkpc.net/1098095097094090/PRIMAL-Vengeance-PRIMAL-3-by-Jack-Silkstone.pdf
    • http://loaminoo.linkpc.net/1098095097094092/PRIMAL-Unleashed-PRIMAL-2-by-Jack-Silkstone.pdf
    • http://loaminoo.linkpc.net/1098095097093096/PRIMAL-Fury-PRIMAL-4-by-Jack-Silkstone.pdf
    • http://loaminoo.linkpc.net/1098093092095096/Vegan-Recipes-in-30-Minutes-Quick-Simple-and-Delicious-Recipes-with-Ingredients-are-Easy-to-Find-in-Your-Local-Store-by-Amanda-Rice.pdf
    • http://loaminoo.linkpc.net/3091090097090097/Mug-Meals-Delicious-Microwave-Recipes-by-Dina-Cheney.pdf
    • http://loaminoo.linkpc.net/3091090097090099/Pr

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