Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c73c0729b42de6d…

MALICIOUS

PDF

15.6 KB Created: 2019-04-30 05:07:27 +01:00 Authoring application: mPDF 5.7
MD5: d7e506e8c2e8bf61570ea9133078fb7a SHA-1: e2282109e8855d51ba23f0e8aacd5e65edbbe865 SHA-256: 4c73c0729b42de6d41c97eba7c4b9321edc43082c95c37f4d60becffcea9c918
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of numerous links suggests a redirection or SEO poisoning attack. The primary attack pattern involves leveraging these links to distribute malicious content or lead users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/8a04a09a00a09a00/Frankenstein-Mary-Shelley-The-Modern-Prometheus-Frankenstein-s-Monster-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a04a00a00a02a01/Frankenstein-By-Mary-Wollstonecraft-Shelley-Illustrated-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a04a01a03a04a06/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a07a04a09a05a00/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/4a02a08a08a07a02/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a08a04a09a08a04/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a08a03a08a07a06/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/6a00a07a05a04a00/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/3a05a07a05a00a06/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/1a07a04a09a02a02/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/8a02a00a07a06a03/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/7a07a06a05a04a00/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/8a04a02a02a04a03/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/7a01a06a08a00a01/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/1a01a01a05a08a08a02/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/3a06a03a06a06a03/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a07a00a03a01a09/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/5a05a04a03a06a07/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/7a07a02a03a08a00/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/7a06a05a06a01a00/Frankenstein-by-Mary-Wollstonecraft-Shelley.pdf
    • http://muicuiu.dumb1.com/3a05a07a05a00a

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