Malicious PDF — malware analysis report

Static analysis result for SHA-256 78802e2794bdd207…

MALICIOUS

PDF

15.8 KB Created: 2019-05-07 07:49:51 +01:00 Authoring application: mPDF 5.7
MD5: 7f4f539959884f02e8485155fa1507fc SHA-1: 8a7d183bde4682a5a89f7cdd8c8a60a585061c9f SHA-256: 78802e2794bdd207caa98f51a202ffe7a02a9185c699086f9f20f360f8d520d1
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, identified as a link farm. While no scripts were extracted, the heuristic firings suggest the document's primary purpose is to direct users to these external resources. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/2a00a01a06a06a07/Shadow-of-The-Fox-Shadow-of-the-Fox-1-by-Julie-Kagawa.pdf
    • http://muicuiu.dumb1.com/4a09a02a07a03a05/The-Shadow-Walkers-Ghost-Series-Books-1-3-Lost-in-Shadow-Desired-by-Shadow-Iced-in-Shadow-by-Cynthia-Luhrs.pdf
    • http://muicuiu.dumb1.com/2a00a03a02a04a08/A-Play-of-Shadow-by-Julie-E-Czerneda.pdf
    • http://muicuiu.dumb1.com/4a08a05a04a09a04/Shadow-Dance-Buchanan-6-by-Julie-Garwood.pdf
    • http://muicuiu.dumb1.com/6a08a08a07a07a09/Shadow-of-Danger-CORE-Shadow-Trilogy-1-by-Kristine-Mason.pdf
    • http://muicuiu.dumb1.com/3a02a06a05a06/Ender-s-Shadow-The-Shadow-Series-1-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/3a04a05a08a02a09/Shadow-of-the-Hegemon-Ender-s-Shadow-2-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/2a00a07a08a04a09/Shadow-Love-Stalkers-Shadow-Vampires-1-by-Claudy-Conn.pdf
    • http://muicuiu.dumb1.com/3a04a02a03a06a03/Shadow-of-the-Giant-The-Shadow-Series-4-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/4a04a03a00a03a05/Ender-s-Shadow-Shadow-1-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/4a02a04a06a07a02/Ender-s-Shadow-Shadow-1-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/4a08a01a01a06a02/Shadow-Touched-Shadow-Touch-1-4-by-Erin-Kellison.pdf
    • http://muicuiu.dumb1.com/1a04a08a06a04a06/The-Shadow-Throne-The-Shadow-Campaigns-2-by-Django-Wexler.pdf
    • http://muicuiu.dumb1.com/9a00a05a06a01/Shadow-s-Fall-Shadow-World-3-by-Dianne-Sylvan.pdf
    • http://muicuiu.dumb1.com/5a04a05a07a07a02/Ender-s-Shadow-Shadow-1-by-Orson-Scott-Card.pdf
    • http://muicuiu.dumb1.com/1a01a00a00a01a06/Of-Shadow-and-Sea-Elder-Empire-Shadow-1-by-Will-Wight.pdf
    • http://muicuiu.dumb1.com/3a04a06a09/Shadow-Rider-Shadow-1-by-Christine-Feehan.pdf
    • http://muicuiu.dumb1.com/4a04a08a05a02a02/The-Shadow-Gypsy-Shadow-Sister-2-by-C-R-Daems.pdf
    • http://muicuiu.dumb1.com/2a07a08a09a05a07/The-Shadow-In-the-Shadow-of-the-Dragon-1-by-Francis-Laveaux.pdf
    • http://muicuiu.dumb1.com/3a00a08a06a03a03/Shadow-Slayer-Shadow-2-by-Laura-A-H-Elliott.pdf