Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f24ebb29ce62f3a…

MALICIOUS

PDF

22.4 KB Created: 2020-02-22 19:41:10 +00:00 Authoring application: mPDF 5.7
MD5: 9333decccf315fb8ecd2cd42138d0ee2 SHA-1: 22c221dfe38611155c5fcd98e6c409f5af2f8ce4 SHA-256: 9f24ebb29ce62f3aa4aea2e77f19410ff682c64964011ced9fba40e65c7e30c1
90 Risk Score

Malware Insights

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

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 specific intent is unclear due to the lack of executable scripts, the sheer volume of links suggests a malicious distribution or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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://seasasac.lflinkup.com/6da4da2da9da4da2/Schiller-s-William-Tell-1898-Original-Scan-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/9da6da3da5da9da2/Schiller-s-Ballads-Der-Gang-Nach-Dem-Eisenhammer-Die-Kraniche-Des-Ibykus-Der-Taucher-Der-Kampf-Mit-Dem-Drachen-With-Notes-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/2da6da4da4da0da7/Schiller-Volume-Three-Joan-of-Arc-William-Tell-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/2da6da3da8da2da1/Poems-of-Schiller-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/9da0da9da6da0da3/Wilhelm-Tell-Friedrich-Schiller-Kommentierte-Ausgabe-mit-Wort--und-Sacherkl-rungen-8--10-Klasse-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/9da2da5da7da4da4/Philosophical-Letters-of-Friedrich-Schiller-by-Friedrich-Schiller.pdf
    • http://seasasac.lflinkup.com/3da6da7da5da2da1/The-Last-Word-and-the-Word-After-That-A-Tale-of-Faith-Doubt-and-a-New-Kind-of-Christianity-by-Brian-D-McLaren.pdf
    • http://seasasac.lflinkup.com/5da1da9da5/Word-by-Word-The-Secret-Life-of-Dictionaries-by-Kory-Stamper.pdf
    • http://seasasac.lflinkup.com/4da9da2da7da9da7/Front-Word-Back-Word-Insight-Out-by-Smoky-Zeidel.pdf
    • http://seasasac.lflinkup.com/7da8da4da6da3da2/One-Perfect-Word-One-Word-Can-Make-All-the-Difference-by-Debbie-Macomber.pdf
    • http://seasasac.lflinkup.com/4da0da6da4da8/A-Knight-of-the-Word-Word-amp-Void-2-by-Terry-Brooks.pdf
    • http://seasasac.lflinkup.com/9da0da8da2da7da4/The-Everything-Giant-Book-of-Word-Searches-Over-300-puzzles-challenge-even-the-most-diehard-word-search-fans-Over-300-Puzzles-to-Challenge-Even-the-Most-Diehard-Word-Search-Fan-by-Charles-Timmerman.pdf
    • http://seasasac.lflinkup.com/1da1da1da4da9da1da0/Word-of-Promise-Word-of-Hope-Preaching-Helps-for-the-First-Readings-From-the-Hebrew-Scripture-for-Cycle-quot-B-quot-by-Paul-R-Frerking.pdf
    • http://seasasac.lflinkup.com/1da1da3da0da0da8da1/Word-Order-In-Ancient-Greek-A-Pragmatic-Account-Of-Word-Order-Variation-In-Herodotus-by-Helma-Dik.pdf
    • http://seasasac.lflinkup.com/4da9da5da5da9da1/Risk-Is-A-Four-Letter-Word-Four-Letter-Word-1-by-Erin-M-Leaf.pdf
    • http://seasasac.lflinkup.com/4da4da6da0da2da0/The-Do-Over-by-M-K-Schiller.pdf
    • http://seasasac.lflinkup.com/1da7da3da8da7da8/A-Girl-by-Any-Other-Name-by-M-K-Schiller.pdf
    • http://seasasac.lflinkup.com/9da2da5da5da9da7/When-Miles-Got-Mad-by-Abbie-Schiller.pdf
    • http://seasasac.lflinkup.com/9da2da5da6da8da0/Lucky-Fall-by-M-K-Schiller.pdf
    • http://seasasac.lflinkup.com/8da8da5da8da8da2/Die-Schwester---T-dliche-Erinnerung-by-B-C-Schiller.pdf
    • http://seasasac.lflinkup.com/3d

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