Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb5d99038f66f52…

MALICIOUS

PDF

15.9 KB Created: 2019-05-02 00:54:02 +01:00 Authoring application: mPDF 5.7
MD5: 4cc264fdb29e38e8e79c7ab3ff753255 SHA-1: 7a724729876202889fb73d589d8f03a8eedf394f SHA-256: ceb5d99038f66f521f325794874e10fb4882f34e1239bca4621f45684d7d3e32
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this document as malicious. While the specific URLs are currently marked as benign, the sheer volume and the suspicious domain suggest a malicious intent to drive traffic or potentially host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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/3a04a08a09a01a07/Bad-Traffick-Leine-Basso-2-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/9a06a06a01a02/Cargo-Leine-Basso-Thrillers-4-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/6a04a06a00a08a03/Stuck-in-Traffick-The-Abduction-of-Poppy-Larue-by-Domino.pdf
    • http://muicuiu.dumb1.com/9a01a00a03a05a07/Bad-Spirits-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/3a04a08a09a02a06/Serial-Date-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/9a08a00a01a02/Yucatan-Dead-Kate-Jones-Thriller-6-by-D-V-Berkom.pdf
    • http://muicuiu.dumb1.com/3a09a09a02a03a03/The-Top-of-the-Pizzas-by-Bill-Basso.pdf
    • http://muicuiu.dumb1.com/1a03a01a00a08a06/Twisted-Traffick-Twisted-Trilogy-2-by-Geza-Tatrallyay.pdf
    • http://muicuiu.dumb1.com/1a01a02a02a08a09a02/Sweet-Sensations-by-Adrienne-Basso.pdf
    • http://muicuiu.dumb1.com/3a07a03a04a00a01/Tis-the-Season-to-Be-Sinful-by-Adrienne-Basso.pdf
    • http://muicuiu.dumb1.com/5a09a08a00a01a02/The-Golem-Triptych-by-Eric-Basso.pdf
    • http://muicuiu.dumb1.com/3a01a00a07a08a00/This-Blood-Grace-Allen-1-by-Alisha-Basso.pdf
    • http://muicuiu.dumb1.com/1a06a01a02a09/The-Light-Infantry-Ball-by-Hamilton-Basso.pdf
    • http://muicuiu.dumb1.com/1a09a04a09a08a01/A-Matter-of-Time-Angel-Sight-3-by-Lisa-M-Basso.pdf
    • http://muicuiu.dumb1.com/2a07a02a02a01a00/Love-Me-Back-The-Basso-Brothers-1-by-Michelle-Lynn.pdf
    • http://muicuiu.dumb1.com/2a04a00a05a02a00/The-Grace-Allen-Series-Set-Books-1-amp-2-by-Alisha-Basso.pdf
    • http://muicuiu.dumb1.com/1a08a05a09a02a09/Wisdom-Sits-in-Places-Landscape-and-Language-Among-the-Western-Apache-by-Keith-H-Basso.pdf
    • http://muicuiu.dumb1.com/6a08a06a07a00a04/Portraits-of-the-Whiteman-Linguistic-Play-and-Cultural-Symbols-Among-the-Western-Apache-by-Keith-H-Basso.pdf
    • http://muicuiu.dumb1.com/7a06a04a02a03a06/M-R-Delalande-Suita-for-Descant-Recorder-and-Basso-Continuo-by-Michel-Richard-Delalande.pdf
    • http://muicuiu.dumb1.com/3a01a00a07a08a00/This-Bloo

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