Malicious PDF — malware analysis report

Static analysis result for SHA-256 f023d99c07acfda3…

MALICIOUS

PDF

15.7 KB Created: 2019-05-01 05:54:32 +01:00 Authoring application: mPDF 5.7
MD5: d327402a965eef89b3cd46c6fb0e5385 SHA-1: d56f034350fba30cf2ee22cc10bf7b0c3be35603 SHA-256: f023d99c07acfda3ce29f51c9a9b46de7034cd98907fe83be4f76495658bfbed
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently flagged as benign, the sheer volume and structure suggest a malicious intent, likely for SEO manipulation or to redirect users to potentially harmful sites. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/1a00a00a05a05a05a03/Curious-George-and-the-Pizza-Party-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/4a05a06a00a05a00/Curious-George-Goes-to-the-Circus-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/3a01a01a03a09a09/Curious-George-Goes-to-a-Movie-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/3a01a01a03a05a09/Curious-George-Makes-Pancakes-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/5a06a00a05a06a05/Curious-George-at-the-Fire-Station-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/9a00a06a05a08/The-Complete-Adventures-of-Curious-George-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/3a09a00a01a07a00/Curious-George-Builds-a-Home-by-Margret-Rey.pdf
    • http://muicuiu.dumb1.com/3a01a06a03a02a00/The-Journey-That-Saved-Curious-George-The-True-Wartime-Escape-of-Margret-and-H-A-Rey-by-Louise-Borden.pdf
    • http://muicuiu.dumb1.com/4a07a08a07a04a03/Curious-George-Curious-You-On-Your-Way-by-H-A-Rey.pdf
    • http://muicuiu.dumb1.com/9a06a07a04a09a07/Curious-George-by-H-A-Rey.pdf
    • http://muicuiu.dumb1.com/6a04a02a05a00/Curious-George-by-H-A-Rey.pdf
    • http://muicuiu.dumb1.com/6a07a00a05a05a06/It-s-Ramadan-Curious-George-by-H-A-Rey.pdf
    • http://muicuiu.dumb1.com/4a06a01a02a09a03/Curious-George-Boxcar-Derby-CGTV-8x8-by-H-A-Rey.pdf
    • http://muicuiu.dumb1.com/1a00a00a05a05a02a00/Pizza-on-the-Grill-100-Feisty-Fire-Roasted-Recipes-for-Pizza-amp-More-by-Elizabeth-Karmel.pdf
    • http://muicuiu.dumb1.com/9a06a00a01a05a07/Curious-George-Carry-Along-Coloring-Kit-by-Laura-Floss.pdf
    • http://muicuiu.dumb1.com/4a08a09a02a04a00/A-Pizza-To-Die-For-Pizza-Lovers-3-by-Chris-Cavender.pdf
    • http://muicuiu.dumb1.com/9a05a07a07a06/The-Stars-Seem-so-Far-Away-by-Margr-t-Helgad-ttir.pdf
    • http://muicuiu.dumb1.com/2a07a02a06a03a08/Winter-Tales-by-Margr-t-Helgad-ttir.pdf
    • http://muicuiu.dumb1.com/2a04a01a04a07a07/My-Little-Dinosaur-by-Ilse-Margret-Vogel.pdf
    • http://muicuiu.dumb1.com/9a06a01a06a01a02/VAMPIR-GOTHIC-21-Die-Rebellin-by-Margret-Schwekendiek.pdf

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