Malicious PDF — malware analysis report

Static analysis result for SHA-256 b34f93ef8c7fd2c6…

MALICIOUS

PDF

17.3 KB Created: 2019-04-30 05:21:15 +01:00 Authoring application: mPDF 5.7
MD5: 2eb2069c6946a2ec8c3cd9d48f26f2a3 SHA-1: e0756219f7467d8b357aa698a182c5ae8476cfeb SHA-256: b34f93ef8c7fd2c69b08460730a7f10916f9652e320473d1f3858a341c2da60b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. While the specific URLs extracted were labeled as benign, the sheer volume and the ML_NYX_PDF_MALICIOUS classification suggest a malicious intent, likely related to SEO manipulation or redirecting users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/1a02a01a08a07a09/August-Barton-s-Big-Day-August-Barton-3-by-Jennifer-LeBlanc.pdf
    • http://muicuiu.dumb1.com/7a09a09a02a05a05/Sue-Barton-Rural-Nurse-Sue-Barton-4-by-Helen-Dore-Boylston.pdf
    • http://muicuiu.dumb1.com/8a05a09a09a01a03/The-Mischa-Barton-Handbook---Everything-You-Need-to-Know-about-Mischa-Barton-by-Emily-Smith.pdf
    • http://muicuiu.dumb1.com/1a01a02a02a07a09a04/Emma-Eine-Familiengeschichte-in-Zwen-Theilen-Von-August-LaFontaine-by-August-Lafontaine.pdf
    • http://muicuiu.dumb1.com/9a03a03a00a04a01/Darstellungen-Aus-Der-Sittengeschichte-ROMs-in-Der-Zeit-Von-August-Bis-Zum-Ausgang-Der-Antonine-Vol-2-In-Der-Zeit-Von-August-Bis-Zum-Ausgang-Der-Antonine-by-Ludwig-Friedlaender.pdf
    • http://muicuiu.dumb1.com/4a06a06a05a06a07/Just-the-Way-You-Are-by-Beverly-Barton.pdf
    • http://muicuiu.dumb1.com/3a05a04a07a04a00/Blitzball-by-Barton-Ludwig.pdf
    • http://muicuiu.dumb1.com/4a00a00a07a07a02/Don-t-Say-a-Word-by-Beverly-Barton.pdf
    • http://muicuiu.dumb1.com/3a01a03a01a02a03/The-Three-Bears-by-Byron-Barton.pdf
    • http://muicuiu.dumb1.com/2a06a06a02a07a07/The-Widow-by-Fiona-Barton.pdf
    • http://muicuiu.dumb1.com/8a04a03a06a00a02/Woe-Shirt-by-Paule-Barton.pdf
    • http://muicuiu.dumb1.com/3a08a07a06a09a08/When-Heaven-Fell-by-William-Barton.pdf
    • http://muicuiu.dumb1.com/7a05a02a06a05a03/Cola-Wars-by-Dennis-J-Barton.pdf
    • http://muicuiu.dumb1.com/6a06a00a03a08a08/Riff-The-Razzle-by-Douglas-Barton.pdf
    • http://muicuiu.dumb1.com/6a06a09a05a01/When-She-Was-Wicked-Honeycote-1-by-Anne-Barton.pdf
    • http://muicuiu.dumb1.com/4a05a08a09a03/My-Father-s-War-and-Other-Stories-by-Barton-Sutter.pdf
    • http://muicuiu.dumb1.com/2a06a04a02a07a04/Mary-Barton-by-Elizabeth-Gaskell.pdf
    • http://muicuiu.dumb1.com/4a09a07a05a00a04/The-Book-of-Esther-by-Emily-Barton.pdf
    • http://muicuiu.dumb1.com/2a09a05a04a01/Ride-Down-The-Wind-by-Wayne-Barton.pdf
    • http://muicuiu.dumb1.com/4a05a04a05a08a03/Damon-Grant-Brothers-6-by-Kathi-S-Barton.pdf
    • http://muicuiu.dumb1.com/9a03a03a00a04a01/

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