Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb9f3b7da06701e…

MALICIOUS

PDF

20.6 KB Created: 2019-04-30 07:59:12 +01:00 Authoring application: mPDF 5.7
MD5: a70bc1cea1d9ea441339ff1d40f8bd68 SHA-1: d41974bd01df9d464b668fccc23d06b14d9af26a SHA-256: 7eb9f3b7da06701eaca8be9bbaea13ecc35140293ce0d44232ad4be89660e937
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these links point to benign-looking book titles, the sheer volume and the ML_NYX_PDF_MALICIOUS classification suggest a malicious intent, likely for SEO manipulation or to distribute further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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/7a02a02a02a01a00/Student-s-World-Atlas-by-Vahe-Movsessian.pdf
    • http://muicuiu.dumb1.com/1a00a03a01a03a03a02/World-Atlas-of-Tea-From-the-leaf-to-the-cup-the-world-s-teas-explored-and-enjoyed-by-Krisi-Smith.pdf
    • http://muicuiu.dumb1.com/9a08a05a07a00a08/The-World-Atlas-of-Beer-The-Essential-Guide-to-the-Beers-of-the-World-by-Tim-Webb.pdf
    • http://muicuiu.dumb1.com/6a05a05a09a03a02/Atlas-of-the-World-by-Oxford-University-Press.pdf
    • http://muicuiu.dumb1.com/4a04a02a04a08a06/The-Penguin-Atlas-of-Women-in-the-World-by-Joni-Seager.pdf
    • http://muicuiu.dumb1.com/5a02a07a04a08a00/The-Kingfisher-Atlas-of-World-History-by-Simon-Adams.pdf
    • http://muicuiu.dumb1.com/4a00a04a00/Atlas-Obscura-An-Explorer-s-Guide-to-the-World-s-Hidden-Wonders-by-Joshua-Foer.pdf
    • http://muicuiu.dumb1.com/5a09a06a00a03a00/Historical-Atlas-Of-The-Early-Modern-World-1492---1783-by-John-Haywood.pdf
    • http://muicuiu.dumb1.com/8a03a06a03a03a04/Salt-to-the-Sea-by-Ruta-Sepetys-Student-Workbook-Quick-Student-Workbooks-by-John-Pennington.pdf
    • http://muicuiu.dumb1.com/1a01a06a05a03a00a01/Al-Capone-Does-My-Shirts-by-Gennifer-Choldenko-Student-Workbook-Quick-Student-Workbooks-by-John-Pennington.pdf
    • http://muicuiu.dumb1.com/9a04a09a03a04a04/Touchstone-Blended-Learning-Level-1-Student-s-Book-Arab-World-Edition-by-Jeanne-McCarten.pdf
    • http://muicuiu.dumb1.com/4a02a05a05a03a02/ATLAS-Atlas-1-by-Isaac-Hooke.pdf
    • http://muicuiu.dumb1.com/6a05a05a07a08a09/Atlas-Atlas-1-by-Becca-C-Smith.pdf
    • http://muicuiu.dumb1.com/1a00a05a04a07a01a09/Anders-Gedacht---Text-and-Context-in-the-German-Speaking-World-Student-Activities-Manual-by-Irene-Motyl-mudretzkyj.pdf
    • http://muicuiu.dumb1.com/8a09a02a05a08a08/Funk-and-Wagnall-s-Hammond-World-Atlas-by-Funk-amp-Wagnalls.pdf
    • http://muicuiu.dumb1.com/6a01a03a00a02a01/Pacific-West-Regional-Edition-Atlas-amp-Gazetteer-s-Alaska-Hawaii-Northern-California-Southern-amp-Central-California-Eartha-World-Travelog-by-DeLorme-Mapping-Company.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a00a04/Cigars-by-Vahe-Gerard.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a06a04/The-Pink-Elephant-by-Vahe-Berberoan.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a05a09/When-Two-Souls-Meet-by-Vahe-Salibian.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a08a09/Epidemiology-of-Quality-by-Vahe-A-Kazandjian.pdf

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