Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e22b4caf92c2df2…

MALICIOUS

PDF

17.4 KB Created: 2019-04-30 03:33:51 +01:00 Authoring application: mPDF 5.7
MD5: 1110d39f3f6c03c81cc524fa3a598bd1 SHA-1: 097dd2407d6e5d8542781c9a8b684b279a6310ee SHA-256: 2e22b4caf92c2df2e8b31324ec1537102d155a9bbecfb42b357bcd4eeb4ee4d0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external websites, a technique often used for SEO manipulation or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/5a01a08a06a01a03/Standing-on-a-Volcano-The-Life-and-Times-of-David-Rowland-Francis-by-Harper-Barnes.pdf
    • http://muicuiu.dumb1.com/4a09a07a07a04/The-Happy-Bottom-Riding-Club-The-Life-and-Times-of-Pancho-Barnes-by-Lauren-Kessler.pdf
    • http://muicuiu.dumb1.com/6a02a08a04a02a04/Sacred-and-Profane-A-Novel-of-the-Life-and-Times-of-Mozart-by-David-Weiss.pdf
    • http://muicuiu.dumb1.com/4a04a01a08a08a00/On-Some-Faraway-Beach-The-Life-and-Times-of-Brian-Eno-by-David-Sheppard.pdf
    • http://muicuiu.dumb1.com/3a04a09a05a05a01/So-Many-Roads-The-Life-and-Times-of-the-Grateful-Dead-by-David-Browne.pdf
    • http://muicuiu.dumb1.com/4a00a04a05a01a04/Moonage-Daydream-The-Life-and-Times-of-Ziggy-Stardust-by-David-Bowie.pdf
    • http://muicuiu.dumb1.com/1a09a01a02a08/Ridiculous-The-Theatrical-Life-and-Times-of-Charles-Ludlam-by-David-Kaufman.pdf
    • http://muicuiu.dumb1.com/1a00a02a00a01a03/The-Tapestry-The-Life-and-Times-of-Francis-and-Edith-Schaeffer-by-Edith-Schaeffer.pdf
    • http://muicuiu.dumb1.com/7a02a04a01a06a09/Free-as-a-Bird-The-Life-and-Times-of-Harold-Dickie-Bird-by-David-Hopps.pdf
    • http://muicuiu.dumb1.com/5a01a06a04a03a08/Judge-and-Jury-The-Life-and-Times-of-Judge-Kenesaw-Mountain-Landis-by-David-Pietrusza.pdf
    • http://muicuiu.dumb1.com/9a05a04a09a09a05/Raffles-and-His-Creator-The-Life-and-Works-of-E-W-Hornung-by-Peter-Rowland.pdf
    • http://muicuiu.dumb1.com/2a09a06a00a01/The-Buffalo-The-Story-of-American-Bison-and-Their-Hunters-from-Prehistoric-Times-to-the-Present-by-Francis-Haines.pdf
    • http://muicuiu.dumb1.com/4a01a07a05a01/Times-of-My-Life-and-My-Life-with-the-Times-by-Max-Frankel.pdf
    • http://muicuiu.dumb1.com/4a08a05a08a00/Born-Standing-Up-A-Comic-s-Life-by-Steve-Martin.pdf
    • http://muicuiu.dumb1.com/1a02a06a05a08a00/Mesmerized-by-David-Matthew-Barnes.pdf
    • http://muicuiu.dumb1.com/1a01a07a09a04a04/The-Jetsetters-by-David-Matthew-Barnes.pdf
    • http://muicuiu.dumb1.com/1a02a09a08a04a05/Ambrosia-by-David-Matthew-Barnes.pdf
    • http://muicuiu.dumb1.com/1a02a08a02a02a03/Accidents-Never-Happen-by-David-Matthew-Barnes.pdf
    • http://muicuiu.dumb1.com/1a09a03a06a08a03/Levels-of-Life-by-Julian-Barnes.pdf
    • http://muicuiu.dumb1.com/3a04a02a06a00a03/Levels-of-Life-by-Julian-Barnes.pdf
    • http://muicuiu.dumb1.com/5a01a06a

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