Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b8bd170652112cc…

MALICIOUS

PDF

15.8 KB Created: 2019-04-30 09:42:31 +01:00 Authoring application: mPDF 5.7
MD5: 1853329bbf6676e0ef0311852cb8fa5b SHA-1: 06739ded9fe6989311d51320bae4bc7814ad81de SHA-256: 2b8bd170652112ccfaa1c83457f4f18fe22f2dc372644045e88a0539814cc2cf
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs that appear to be book titles, suggesting a link farm or redirection scheme. The PDF_SEO_LINK_FARM heuristic firing confirms this, indicating a malicious attempt to drive traffic to external sites. While no scripts were extracted, the sheer volume of links and the ML classifier's high confidence point to a malicious intent, likely to lead users to potentially harmful content or phishing pages.

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/4a04a02a02a02a00/David-Lord-of-Honor-Lonely-Lords-9-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/3a04a01a07a07a01/Beckman-Lord-of-Sins-Lonely-Lords-4-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/2a00a04a03a08a02/Duchesses-in-Disguise-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a04a02a02a03a02/Jonathan-and-Amy-Windham-8-6-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a06a06a02a02a03/Kiss-Me-Hello-Sweetest-Kisses-3-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/3a04a09a01a06a03/Jack-Jaded-Gentlemen-4-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/3a04a09a09a09a05/The-Duke-and-His-Duchess-Windham-0-6-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a07a08a05a02a01/Dancing-in-the-Duke-s-Arms-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a03a03a07a08a04/A-Kiss-for-Luck-Sweetest-Kisses-0-6-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a06a06a01a00a09/A-Single-Kiss-Sweetest-Kisses-1-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/1a01a06a08a03/Lady-Sophie-s-Christmas-Wish-The-Duke-s-Daughters-1-Windham-4-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/2a05a07a01a09a08/Honor-Among-Enemies-Honor-Harrington-6-by-David-Weber.pdf
    • http://muicuiu.dumb1.com/3a03a05a00a05a01/The-Honor-of-the-Queen-Honor-Harrington-2-by-David-Weber.pdf
    • http://muicuiu.dumb1.com/4a06a04a06a07a08/Tremaine-s-True-Love-True-Gentlemen-1-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/2a00a04a05a01a03/His-Lordship-s-True-Lady-True-Gentlemen-4-by-Grace-Burrowes.pdf
    • http://muicuiu.dumb1.com/4a06a03a07a09a09/Tempted-by-a-Lady-s-Smile-Lords-of-Honor-4-by-Christi-Caldwell.pdf
    • http://muicuiu.dumb1.com/2a00a06a04a02a09/War-of-Honor-Honor-Harrington-10-by-David-Weber.pdf
    • http://muicuiu.dumb1.com/1a07a09a03a07a03/More-Than-Honor-Worlds-of-Honor-1-by-David-Weber.pdf
    • http://muicuiu.dumb1.com/7a05a04a07a05a00/Regency-Romps-Rogues-Spies-and-Lords-of-Honor-Books-1-2-3-by-Cerise-DeLand.pdf
    • http://muicuiu.dumb1.com/1a07a04a08a05a05/The-Stubborn-Lord-Dragon-Lords-6-by-Michelle-M-Pillow.pdf
    • http://muicuiu.dumb1.com/2a05a07a

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