Malicious PDF — malware analysis report

Static analysis result for SHA-256 db88a7553c00f945…

MALICIOUS

PDF

14.2 KB Created: 2019-04-30 02:31:49 +01:00 Authoring application: mPDF 5.7
MD5: 63ac31321cb5443eaa3a7f8c50a31e1d SHA-1: 97ef5f93440d1a03591cceba6fc17e3dd2fd6e0a SHA-256: db88a7553c00f945b5911e9e1a8a6b9f89c10f729925bb35603c0e692e89bd74
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various book titles. While the URLs themselves are marked as benign, the sheer volume and the nature of the heuristic suggest a link farm intended to drive traffic or potentially mask malicious activity. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9200

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/7a08a09a00a06a02/Roald-Dahl-Omnibus-Charlie-and-the-Chocolate-Factory-James-and-the-Giant-Peach-Fantastic-Mr-Fox-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/3a01a03a09a00a08/Fantastic-Mr-Fox-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/3a07a06a02a09a08/The-Gremlins-The-Lost-Walt-Disney-Production-A-Royal-Air-Force-Story-by-Flight-Lieutenant-Roald-Dahl-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/1a00a01a08a09a08/The-Roald-Dahl-Omnibus-Perfect-Bedtime-Stories-for-Sleepless-Nights-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a08a09a05a09/Roald-Dahl-Magical-Mischief-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/6a01a06a01a03/Boy-and-Going-Solo-Roald-Dahl-s-Autobiography-1--2-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a08a09a05a00/Roald-Dahl-s-Mischief-and-Mayhem-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a08a09a05a01/Roald-Dahl-s-Cookbook-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/8a00a05a06a06/The-Roald-Dahl-Collection-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a09a00a06a03/Roald-Dahl-Gift-Set-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/3a02a01a01a07/Matilda-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a03a02a04/The-Sleekit-Mr-Tod-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/1a03a09a06a04a04/The-Witches-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/1a09a00a09a08a03/Matilda-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a09a00a05a07/The-Bookseller-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/2a01a05a07a00a07/Madness-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/2a08a09a05a04a09/Going-Solo-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a08a09a05a04/Cruelty-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a09a00a05a09/The-Visitor-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a03a09a02a09a05/Matilda-by-Roald-Dahl.pdf
    • http://muicuiu.dumb1.com/7a08a08a09a05a01/Roald-Dahl-s-Cookbook-by-Roald-Da

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