Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed814f9312fed4c6…

MALICIOUS

PDF

14.2 KB Created: 2019-04-30 02:24:38 +01:00 Authoring application: mPDF 5.7
MD5: 0338a51f172ae6d5afae07769a3a405a SHA-1: f2b434dcd26b9d7e015a402bfcea7bc1ef4acc39 SHA-256: ed814f9312fed4c6b5db3d7deac5100a671380c9ce5b7bb4cab5623e852e93f4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious sites. While the specific URLs extracted were confirmed as benign, the sheer volume and structure of the link farm suggest a malicious intent to distribute harmful content or conduct phishing attacks. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9200

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/8a04a02a00a07/Jemima-J-For-those-who-love-Faking-Friends-and-My-Sweet-Revenge-by-Jane-Fallon-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/3a04a08a02a07a07/Cat-and-Jemima-J-A-Short-Story-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/8a05a01a08a07a05/The-Ultimate-Green-Tea-Guide-History-Green-Tea-Benefits-Green-Tea-Types-Best-Brewing-Practices-and-Tasty-Green-Tea-Recipes-for-Everyone-by-Ayumi-Furuya.pdf
    • http://muicuiu.dumb1.com/1a01a02a00a07a05a07/Babyville-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/1a01a02a00a00a09/Babyville-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/1a01a00a09a06a05/Second-Chance-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/4a07a07a00a09/The-Other-Woman-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/8a04a00a09a04/Second-Chance-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/4a08a05a03a01/To-Have-and-to-Hold-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/1a06a05a01a01a03/Swapping-Lives-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/4a07a09a02a01/The-Beach-House-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/1a06a04a09a05a04/Dune-Road-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/6a02a06a03a04a09/A-Walk-in-the-Park-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/5a00a02a08a03a06/Seattle-Green-by-Jane-Adams.pdf
    • http://muicuiu.dumb1.com/2a06a03a05a07a04/Summer-Secrets-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/4a06a01a02a02a01/Straight-Talking-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/5a05a06a05a09/Saving-Grace-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/8a06a08a07a07a00/Liebe-in-den-Zeiten-des-Internet-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/2a04a01a09a01a09/The-Subtle-Fiend-The-Green-Woman-2-by-Jane-Dougherty.pdf
    • http://muicuiu.dumb1.com/4a08a02a04a00a04/A-Walk-in-the-Park-A-Short-Story-by-Jane-Green.pdf
    • http://muicuiu.dumb1.com/1a06a05a01a01a03/Swapping-Lives-by-Jane-

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