Malicious PDF — malware analysis report

Static analysis result for SHA-256 a97e03688c50f44f…

MALICIOUS

PDF

16.2 KB Created: 2019-05-07 06:06:33 +01:00 Authoring application: mPDF 5.7
MD5: 93c9b31b50ba04f1719849f13ce7559b SHA-1: ba146aaa78a73d8bcc16160a75af2c77e9880574 SHA-256: a97e03688c50f44f792927ff75974776dad383e2b9fe7a4ae8eb938a53c6f548
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious websites. The ML classifier also flagged this PDF as malicious. While the specific intent of the links is unclear due to their 'confirmed_benign' reputation, the sheer volume and the heuristic firing suggest a malicious purpose, likely related to link farming or distributing further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/2a06a07a07a06/Foundation-and-Earth-Foundation-5-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/1a00a05a03a00a00/Foundation-and-Earth-Foundation-5-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/3a03a04a01a06a08/Foundation-and-Empire-Foundation-2-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/4a02a04a06a07a03/Foundation-and-Empire-Foundation-2-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/4a00a05a07a07a07/Foundation-and-Empire-Foundation-2-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/2a04a06a06a03/The-Foundation-Trilogy-Foundation-1-3-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/2a04a05a09a09/Foundation-s-Edge-Foundation-4-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/4a06a08a05a01a07/Foundation-and-Empire-Foundation-2-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/1a08a02a09a04a04/Foundation-Foundation-1-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/3a02a03a05a09/Foundation-Foundation-1-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/3a03a04a01a06a09/Second-Foundation-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/6a04a06a07a03a09/Foundation-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/4a02a05a02a03a01/The-Foundation-Trilogy-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/1a00a03a03a04a03a05/The-Foundation-Trilogy-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/6a09a04a06a03a06/Isaac-Asimov-s-Guide-to-Earth-and-Space-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/1a01a07a07a04a00a06/Classical-Guitar-Technique-from-Foundation-to-Virtuosity-Part-1-Foundation-by-Stanley-Yates.pdf
    • http://muicuiu.dumb1.com/3a06a03a00a01a03/Foundation-for-Greatness-Understanding-the-Benefits-of-Laying-a-Solid-Foundation-by-Victor-Uzoma.pdf
    • http://muicuiu.dumb1.com/1a05a09a09a07a03/Foundation-s-Triumph-Second-Foundation-Trilogy-3-by-David-Brin.pdf
    • http://muicuiu.dumb1.com/3a02a07a03a00a08/Space-Shuttles-Isaac-Asimov-s-Wonderful-Worlds-of-Science-Fiction-7-by-Isaac-Asimov.pdf
    • http://muicuiu.dumb1.com/1a01a06a03a03a07a09/Isaac-Asimov-Presents-the-Great-SF-Stories-8-1946-by-Isaac-Asimov.pdf

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