Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4d8f3f567791dc…

MALICIOUS

PDF

17.5 KB Created: 2019-05-02 01:15:16 +01:00 Authoring application: mPDF 5.7
MD5: b6b5f67ad661dd19b2d8a8a030697b19 SHA-1: fafbcb01aed845651daa8e733022ac2d0f0c9b06 SHA-256: fe4d8f3f567791dc6fe1cd626245e13706ee821702fc721bb8525fff720a4bd5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs, though marked as benign by external reputation services, are part of a link farm designed to direct users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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/1a01a02a07a04a04/Beginners-Love-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/1a01a02a08a01a06/It-s-OK-If-You-Don-t-Love-Me-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/4a05a07a03a06a09/Girls-Can-Be-Anything-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/1a01a02a06a04a00/Breaking-Up-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/3a02a08a09a05a00/Mom-the-Wolf-Man-and-Me-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/3a03a05a08a08a06/Tomboy-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/1a01a02a05a07a02/Older-Men-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/1a01a02a07a00a03/Family-Secrets-by-Norma-Klein.pdf
    • http://muicuiu.dumb1.com/1a00a05a01a08a03a04/Learn-German-With-Stories-Zur-ck-in-Z-rich---10-Short-Stories-For-Beginners-by-Andr-Klein.pdf
    • http://muicuiu.dumb1.com/4a08a08a06a08a05/Learn-German-with-Stories-Momente-in-M-nchen---10-Short-Stories-for-Beginners-by-Andr-Klein.pdf
    • http://muicuiu.dumb1.com/4a08a08a03a09a06/Learn-German-with-Stories-Ahoi-Aus-Hamburg---10-Short-Stories-for-Beginners-by-Andr-Klein.pdf
    • http://muicuiu.dumb1.com/1a02a03a06a01a07/Mugs-of-Love-Stories-of-Love-1-by-Norma-Jeanne-Karlsson.pdf
    • http://muicuiu.dumb1.com/1a01a08a02a09a03a00/Learn-German-With-Stories-Digital-in-Dresden---10-Short-Stories-For-Beginners-Dino-lernt-Deutsch-9-by-Andr-Klein.pdf
    • http://muicuiu.dumb1.com/9a08a02a00a07/Won-by-Love-by-Norma-McCorvey.pdf
    • http://muicuiu.dumb1.com/4a03a01a07a09a00/An-Affair-to-Remember-Freedom-in-Love-1-by-Norma-Budden.pdf
    • http://muicuiu.dumb1.com/3a01a07a05a07a04/An-Affair-to-Remember-Freedom-in-Love-1-by-Norma-Budden.pdf
    • http://muicuiu.dumb1.com/1a07a09a00a00a02/Love-amp-Patience-by-K-lee-Klein.pdf
    • http://muicuiu.dumb1.com/1a03a01a09a07a07/Honor-Lost-Love-And-Death-In-Modern-Day-Jordan-by-Norma-Khouri.pdf
    • http://muicuiu.dumb1.com/3a05a09a06a06a03/Love-Reign-o-er-Me-Behind-Blue-Eyes-1-by-Anne-Marie-Klein.pdf
    • http://muicuiu.dumb1.com/4a09a06a08a07a07/Let-My-Love-Open-the-Door-Behind-Blue-Eyes-3-by-Anne-Marie-Klein.pdf
    • http://muicuiu.dumb1.com/4a08a08a03a09a06/Learn-German-

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