Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b1190662534a9b2…

MALICIOUS

PDF

17.5 KB Created: 2019-04-30 05:29:30 +01:00 Authoring application: mPDF 5.7
MD5: 86bd38c30ff31a4b375c2af3a47c18ec SHA-1: 79c44c1cc4444285e062fd4e8cae66b49afd4dd4 SHA-256: 6b1190662534a9b29bb08f8c8311e30b0101193019e3ccb974a35af1f8390432
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. While the document body is unreadable, the 'PDF_SEO_LINK_FARM' heuristic strongly indicates a malicious intent to redirect users. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/2a09a06a09a05a08/Loving-Liberty-by-Belinda-Boring.pdf
    • http://muicuiu.dumb1.com/1a03a08a08a09a03/David-Boring-by-Daniel-Clowes.pdf
    • http://muicuiu.dumb1.com/2a00a05a06a09a03/Cherished-Mystic-Wolves-1B-by-Belinda-Boring.pdf
    • http://muicuiu.dumb1.com/3a00a03a00a03a07/Without-Mercy-Mystic-Wolves-1A-by-Belinda-Boring.pdf
    • http://muicuiu.dumb1.com/4a07a08a03a02a07/The-boring-evening-by-Patrik-Philip-Berglund.pdf
    • http://muicuiu.dumb1.com/2a04a05a09a06a06/Testing-Fate-Mystic-Wolves-3-by-Belinda-Boring.pdf
    • http://muicuiu.dumb1.com/6a06a06a09a06a03/Automate-the-Boring-Stuff-with-Python-Practical-Programming-for-Total-Beginners-by-Al-Sweigart.pdf
    • http://muicuiu.dumb1.com/1a00a08a04a05a01a00/Creative-Communicator-399-Goals-to-Communicate-Commitment-without-Boring-People-to-Death-by-Barbara-A-Glanz.pdf
    • http://muicuiu.dumb1.com/2a02a00a01a07a06/Life-in-the-Funny-Lane-My-Eccentric-Upbringing-Where-the-Bizarre-Seemed-Normal-and-the-Normal-Well-Boring-Isn-t-It-by-Paul-Dunne.pdf
    • http://muicuiu.dumb1.com/4a05a07a04a02a00/A-Very-Mystic-Christmas-Mystic-Wolves-4-5-by-Belinda-Boring.pdf
    • http://muicuiu.dumb1.com/9a07a01a01a04a01/Plague-Ports-The-Global-Urban-Impact-of-Bubonic-Plague-1894-1901-by-Myron-Echenberg.pdf
    • http://muicuiu.dumb1.com/4a03a04a07a01a05/The-Reaper-Plague-Plague-Wars-7-by-David-VanDyke.pdf
    • http://muicuiu.dumb1.com/2a08a07a08a07/The-Eden-Plague-Plague-Wars-0-by-David-VanDyke.pdf
    • http://muicuiu.dumb1.com/7a07a05a03a00a09/Plague-Zone-Plague-3-by-Jeff-Carlson.pdf
    • http://muicuiu.dumb1.com/3a07a02a03a06a03/Plague-War-Plague-2-by-Jeff-Carlson.pdf
    • http://muicuiu.dumb1.com/1a00a05a09a05a06/A-Plague-of-Angels-Plague-of-Angels-1-by-Sheri-S-Tepper.pdf
    • http://muicuiu.dumb1.com/1a09a07a00a03a09/Voodoo-Plague-Voodoo-Plague-1-by-Dirk-Patton.pdf
    • http://muicuiu.dumb1.com/1a00a01a01a03a08/Curbchek-by-Zach-Fortier.pdf
    • http://muicuiu.dumb1.com/8a00a07a06a05a06/StreetCreds-by-Zach-Fortier.pdf
    • http://muicuiu.dumb1.com/2a01a08a02a06a02/Hero-To-Zero-by-Zach-Fortier.pdf

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