Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c743612e9a18915…

MALICIOUS

PDF

16.0 KB Created: 2019-05-07 03:27:18 +01:00 Authoring application: mPDF 5.7
MD5: bf51207bb8c07bc6171a6b430db1cb73 SHA-1: 2fbad5dccb1b5697bd2d4313c23d7c1b1569dbe0 SHA-256: 9c743612e9a189157cd0164ce521535b9fee203e69939bca6ecc560abcbcf8c3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the document body was unreadable, the heuristic 'PDF_SEO_LINK_FARM' indicates the primary function is to direct users to a large number of external URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/7a05a09a02a08/Killing-Sam-Knight-The-Knight-Chronicles-2-by-John-Cassian.pdf
    • http://muicuiu.dumb1.com/2a08a03a04a02a04/Knight-Moves-Black-Knight-Chronicles-3-by-John-G-Hartness.pdf
    • http://muicuiu.dumb1.com/2a08a00a05a04a03/The-Black-Knight-Chronicles-by-John-G-Hartness.pdf
    • http://muicuiu.dumb1.com/1a06a09a09a08a06/The-Green-Knight-s-Squire-The-Green-Knight-s-Squire-1-3-Moth-amp-Cobweb-1-3-by-John-C-Wright.pdf
    • http://muicuiu.dumb1.com/4a05a02a01a03a00/Dances-With-Sheep-A-K-Chronicles-Compendium-K-Chronicles-1-by-Keith-Knight.pdf
    • http://muicuiu.dumb1.com/2a09a05a05a07a09/Central-Park-Knight-Piers-Knight-2-by-C-J-Henderson.pdf
    • http://muicuiu.dumb1.com/8a04a04a04a00/Seductive-Knight-Knight-Brothers-4-by-Tierney-O-39-Malley.pdf
    • http://muicuiu.dumb1.com/3a03a02a05a02a06/The-Complete-Knight-Trilogy-Knight-1-3-by-Kitty-French.pdf
    • http://muicuiu.dumb1.com/5a04a01a01a09/A-Knight-of-Silence-Knight-Series-1-by-Candace-C-Bowen.pdf
    • http://muicuiu.dumb1.com/8a06a01a08a07/Wicked-Knight-Knight-Brothers-1-by-Tierney-O-39-Malley.pdf
    • http://muicuiu.dumb1.com/5a02a02a00a02a08/Return-of-the-Knight-Border-Knight-2-by-Griff-Hosker.pdf
    • http://muicuiu.dumb1.com/1a05a05a02a01a06/Knight-Takes-Pawn-Red-Knight-1-by-Martha-Sweeney.pdf
    • http://muicuiu.dumb1.com/2a05a07a04a01a07/Darkest-Knight-City-Knight-5-by-T-A-Webb.pdf
    • http://muicuiu.dumb1.com/4a07a01a07a08/Knight-amp-Play-Knight-1-by-Kitty-French.pdf
    • http://muicuiu.dumb1.com/6a08a06a00a02/The-Knight-The-Wizard-Knight-1-by-Gene-Wolfe.pdf
    • http://muicuiu.dumb1.com/3a06a03a01a03a06/Knight-s-End-Knight-s-Trilogy-1-by-Jami-Montgomery.pdf
    • http://muicuiu.dumb1.com/1a01a03a09a02a09/The-Last-Knight-Knight-and-Rogue-1-by-Hilari-Bell.pdf
    • http://muicuiu.dumb1.com/3a05a09a09a01a04/The-Blood-of-The-Fifth-Knight-The-Fifth-Knight-2-by-E-M-Powell.pdf
    • http://muicuiu.dumb1.com/8a02a01a07a09/Resistance-Ilyon-Chronicles-1-by-Jaye-L-Knight.pdf
    • http://muicuiu.dumb1.com/1a00a09a08a05a04/Escapement-The-Neumarian-Chronicles-1-by-Ciara-Knight.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.