Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede27c3fa6871832…

MALICIOUS

PDF

13.0 KB Created: 2019-04-30 03:36:09 +01:00 Authoring application: mPDF 5.7
MD5: 7a9fcf8ee1f6761a7f1f3f858351fd39 SHA-1: 804f439c9cbca293310456b9555793d3c03e79f0 SHA-256: ede27c3fa687183223e6c5ca81213f393d462bfe62b69d38adf9694ac70677fe
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a link farm or redirection scheme. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. The attack pattern is likely a lure to drive traffic to potentially malicious sites, possibly for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/2a09a09a05a00a08/Faery-Me-Phanta-City-3-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/7a06a03a00a03a01/Kaleidoscope-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a03a02a01a09a08/The-Master-s-Pet-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a05a05a03a00a09/My-Lupine-Lover-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/3a00a02a05a07a04/Little-Bit-of-Nothing-Cade-Creek-8-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/3a08a02a02a00a00/Bailey-Battle-Bunnies-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a07a03a03a06a08/Happy-s-Ever-After-Cade-Creek-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/4a06a02a00a01a07/The-Cat-s-Meow-Assassin-s-Pride-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/4a04a08a06a02a02/Cowboy-Up-Blaecleah-Brothers-5-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a03a04a01a04a01/Broken-Nail-Diva-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/3a09a03a08a00a06/Lucius-Spartan-Warrior-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a06a03a02a06a05/Cowboy-Way-Blaecleah-Brothers-3-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a09a09a03a01a05/Sunshine-s-Kiss-McCaffrey-Men-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a09a09a04a09a03/Highland-Heart-King-s-Command-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a09a09a02a06a07/Sparkle-and-Purr-Midnight-Matings-10-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a03a02a04a09a06/Mating-Games-Delta-Wolf-2-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a07a03a07a08a01/Waiting-to-Breathe-Special-Operations-5-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/3a05a03a07a04a03/Not-So-Simple-Simon-Aberdeen-Pack-4-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a06a03a02a06a02/Cowboy-Easy-Blaecleah-Brothers-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/6a02a06a08a01a09/Mikhail-amp-Jace-Forever-Mates-1-by-Stormy-Glenn.pdf
    • http://muicuiu.dumb1.com/2a09a09a04a09a03/Highland-Heart-King

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