Malicious PDF — malware analysis report

Static analysis result for SHA-256 552474b6e92a0e85…

MALICIOUS

PDF

17.4 KB Created: 2019-04-30 04:59:18 +01:00 Authoring application: mPDF 5.7
MD5: 2cf5d306b7e3cfd7f3a70767c5d8c8d6 SHA-1: db5f5495006d82cffabdcbc4216bba500b150a67 SHA-256: 552474b6e92a0e8553d72838ec4a5a783bcc784357dea477e6f71d8b78d66bbc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. While most of these URLs were classified as benign, the sheer volume and the heuristic firing 'PDF_SEO_LINK_FARM' indicate a malicious intent to direct users to external content. The ML classifier also strongly flagged this PDF as malicious. 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/6a05a06a02a09a03/Summary-of-Barkskins-by-Annie-Proulx-Includes-Analysis-by-Instaread-Summaries.pdf
    • http://muicuiu.dumb1.com/7a06a08a03a00/Postcards-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a05a06a02a08a07/Cider-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a05a06a04a06a08/The-Gourmet-Gardener-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/4a01a03a04a09a00/The-Shipping-News-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/2a01a08a00a03/The-Shipping-News-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/3a09a03a03a02a02/The-Shipping-News-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/4a00a09a07a02a05/Bird-Cloud-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/9a08a02a07a05a06/The-Shipping-News-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a08a02a00a00/Accordion-Crimes-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/1a00a01a01a06a09a03/Ein-Haus-in-der-Wildnis-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a05a06a03a08a02/Annie-Proulx-s-Brokeback-Mountain-and-Postcards-by-Mark-Asquith.pdf
    • http://muicuiu.dumb1.com/6a05a06a03a08a01/Making-the-Best-Apple-Cider-Storey-Country-Wisdom-Bulletin-A-47-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a05a06a02a09a05/Annie-Proulx-s-Brokeback-Mountain-and-Postcards-A-Reader-s-Guide-by-Mark-Asquith.pdf
    • http://muicuiu.dumb1.com/6a05a06a04a07a03/Scholarly-Paper-Proulx-Annie---The-Shipping-News---The-Meaning-Of-Fear---NOT-the-novel-by-Stephan-Holm.pdf
    • http://muicuiu.dumb1.com/6a05a06a04a07a02/The-complete-dairy-foods-cookbook-How-to-make-everything-from-cheese-to-custard-in-your-own-kitchen-by-E-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/6a05a06a04a06a01/-quot-What-ll-you-take-for-it-quot-Back-to-barter-by-Annie-Proulx.pdf
    • http://muicuiu.dumb1.com/5a03a04a06a07a04/Proulx-Historical-and-Genealogical-information-about-Albert-and-Leda-Proulx-by-Mark-Labine.pdf
    • http://muicuiu.dumb1.com/5a02a06a02a07a09/Annie-s-Verdict-Michael-Gresham-7-Annie-the-Profiler-1-by-John-Ellsworth.pdf
    • http://muicuiu.dumb1.com/5a08a07a02a00/Annie-s-1st-Break-Annie-McCauley-1-by-Willee-Amsden.pdf
    • http://muicuiu.dumb1.com/6a05a06a03a08a01/Making-t

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