Malicious PDF — malware analysis report

Static analysis result for SHA-256 a56c62fda22c270c…

MALICIOUS

PDF

17.5 KB Created: 2019-05-07 08:08:48 +01:00 Authoring application: mPDF 5.7
MD5: 863160a16ed158292da65bf2c87a7990 SHA-1: 81f93e2fb21ecc1a1e230530b73ba052aaf28310 SHA-256: a56c62fda22c270c2959de5e2d4a576b8833bd0aa929369113981f3d44ea1746
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, forming a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a technique to drive traffic to external sites. While the specific URLs themselves are classified as benign, the sheer volume and structure suggest a malicious intent to redirect users, likely for SEO manipulation or to host malicious content on linked pages. 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://muicuiu.dumb1.com/2a00a01a04a06a04/High-Plains-Promise-Love-on-the-High-Plains-2-by-Simone-Beaudelaire.pdf
    • http://muicuiu.dumb1.com/1a04a06a08a01a03/High-Plains-Holiday-Love-on-the-High-Plains-1-by-Simone-Beaudelaire.pdf
    • http://muicuiu.dumb1.com/2a02a06a00a07a06/Times-of-Sorrow-Times-of-Grace-Writing-by-Women-of-the-Great-Plains-High-Plains-by-Marjorie-Saiser.pdf
    • http://muicuiu.dumb1.com/3a09a09a03a05a03/High-Plains-Bride-by-Jenna-Kernan.pdf
    • http://muicuiu.dumb1.com/1a00a09a03a09a07/Josiah-High-Plains-Heroes-1-by-Jaydine-Rendall.pdf
    • http://muicuiu.dumb1.com/2a09a02a03a00/Fort-Laramie-Military-Bastion-of-the-High-Plains-by-Douglas-C-McChristian.pdf
    • http://muicuiu.dumb1.com/1a03a00a02a06a08/All-s-Fair-in-Love-War-and-High-School-Pullman-High-2-by-Janette-Rallison.pdf
    • http://muicuiu.dumb1.com/4a03a07a07a07a04/All-s-Fair-in-Love-War-and-High-School-Pullman-High-2-by-Janette-Rallison.pdf
    • http://muicuiu.dumb1.com/4a08a09a05a01a03/Sweet-Valley-High-Collection-Double-Love-Secrets-Playing-with-Fire-Sweet-Valley-High-1-3-by-Francine-Pascal.pdf
    • http://muicuiu.dumb1.com/4a06a09a05a08a01/The-High-King-s-Golden-Tongue-Tales-of-the-High-Court-1-by-Megan-Derr.pdf
    • http://muicuiu.dumb1.com/5a03a00a07a06a09/Bonjour-Wildcats-High-School-Musical-Stories-from-East-High-12-by-N-B-Grace.pdf
    • http://muicuiu.dumb1.com/3a03a01a05a01a03/Mistress-and-Commander-High-Jinks-High-Seas-and-Highlanders-by-Amelia-Dalton.pdf
    • http://muicuiu.dumb1.com/2a05a00a04a07a03/His-Lady-Smuggler-High-Seas-amp-High-Stakes-1-by-Tamara-Gill.pdf
    • http://muicuiu.dumb1.com/6a03a09a03a05/Great-Plains-by-Ian-Frazier.pdf
    • http://muicuiu.dumb1.com/9a01a02a05a00/The-Plains-by-Gerald-Murnane.pdf
    • http://muicuiu.dumb1.com/4a00a08a03a03a01/High-Seas-To-High-Society-Wellinghams-1-by-Sophia-James.pdf
    • http://muicuiu.dumb1.com/1a09a08a04a07a08/When-the-Music-Ends-The-Hearts-in-Winter-Chronicles-1-by-Simone-Beaudelaire.pdf
    • http://muicuiu.dumb1.com/1a06a09a03a02a02/When-the-Music-Ends-The-Hearts-in-Winter-Chronicles-1-by-Simone-Beaudelaire.pdf
    • http://muicuiu.dumb1.com/2a03a06a01a00/Rising-from-the-Plains-by-John-McPhee.pdf
    • http://muicuiu.dumb1.com/3a08a07a02a02a07/Thunder-on-the-Plains-by-Rosanne-Bittner.pdf
    • http://muicuiu.dumb1.com/4a08a09a

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