Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e4db4d4a78f3077…

MALICIOUS

PDF

11.7 KB Created: 2019-05-02 00:43:30 +01:00 Authoring application: mPDF 5.7
MD5: f14c11a3b46b7ef0d813e873da454c79 SHA-1: d0a5ab70f03b18bbf528f848adf9d718ab90f637 SHA-256: 1e4db4d4a78f30776b1f343681c3e9382d9acf526ff851cd8b6febf48abeb17d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. While the specific content of the linked PDFs is benign, the sheer volume and structure suggest a malicious intent to redirect users to a potentially harmful site or to engage in SEO poisoning. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8737

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/4a00a09a01a03a08/H-R-H-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/3a00a07a01a06a06/The-Promise-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a01a06a03a04a07/Against-All-Odds-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/2a02a03a03a03a03/The-Ghost-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/7a09a03a03a06/Rogue-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a03a05a06a09/Granny-Dan-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/5a06a09a05/Against-All-Odds-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/8a00a09a04/The-Cast-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a00a09a05a03a02/Summer-s-End-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/6a04a02a02a01a04/The-Award-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a01a07a01a08a08/To-Love-Again-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/4a04a04a03a08/Sisters-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/1a03a09a02a09a01/Remembrance-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/2a02a08a08a07a05/Star-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/2a02a03a02a07a04/The-Wedding-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/3a08a03a04a01a04/Once-in-a-Lifetime-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/3a00a04a02a07a08/The-Gift-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/2a02a03a03a02a09/The-Ranch-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/8a07a06a05a09/The-Kiss-by-Danielle-Steel.pdf
    • http://muicuiu.dumb1.com/6a06a08a02/Fairytale-by-Danielle-Steel.pdf

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