Malicious PDF — malware analysis report

Static analysis result for SHA-256 feec205ca3e7f546…

MALICIOUS

PDF

16.6 KB Created: 2019-04-30 03:56:20 +01:00 Authoring application: mPDF 5.7
MD5: d1309cb02ac61e52fe9ac7e0bb972f97 SHA-1: de5aa5040c2902c775bc4a3da33497c649181b21 SHA-256: feec205ca3e7f546a155e72f33b4da1a44598553d5cb6b37e7e5791a7ef97c4c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also strongly indicated maliciousness. While the specific intent of the link farm is unclear, it is highly suspicious and likely part of a larger malicious operation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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/1a07a04a08a00/The-Victims-the-Wylie-Hoffert-Murder-Case-and-Its-Strange-Aftermath-by-Bernard-Lefkowitz.pdf
    • http://muicuiu.dumb1.com/1a07a00a07a06/Our-Guys-The-Glen-Ridge-Rape-and-the-Secret-Life-of-the-Perfect-Suburb-by-Bernard-Lefkowitz.pdf
    • http://muicuiu.dumb1.com/9a00a00a07a03a07/Multiple-Victims-Murder-by-Arnon-Edelstein.pdf
    • http://muicuiu.dumb1.com/1a09a01a05a00a03/A-Rip-in-Heaven-A-Memoir-of-Murder-And-Its-Aftermath-by-Jeanine-Cummins.pdf
    • http://muicuiu.dumb1.com/9a03a01a09a02a08/The-Ride-The-Jeffrey-Curley-Murder-and-Its-Aftermath-by-Brian-MacQuarrie.pdf
    • http://muicuiu.dumb1.com/4a01a08a08a01a09/The-Strange-Case-of-Mr-Salad-Monday-by-G-D-Falksen.pdf
    • http://muicuiu.dumb1.com/3a07a00a09a03a05/The-Strange-Case-of-the-Big-Sur-Benefactor-by-Jess-Faraday.pdf
    • http://muicuiu.dumb1.com/7a00a02a02a04a03/The-Strange-Case-of-Mademoiselle-P-by-Brian-O-39-Doherty.pdf
    • http://muicuiu.dumb1.com/5a09a08a09a04a04/The-Strange-Case-of-Madeleine-Seguin-by-William-Rose.pdf
    • http://muicuiu.dumb1.com/9a04a06a02a05a08/The-Strange-Case-of-Rudi-Schneider-by-Anita-Gregory.pdf
    • http://muicuiu.dumb1.com/1a08a07a02a08a09/The-Strange-Case-of-Billy-Biswas-by-Arun-Joshi.pdf
    • http://muicuiu.dumb1.com/6a02a04a09a04a02/A-Strange-Case-Of-Magic-Barnes-and-The-Brains-2-by-Kenneth-Oppel.pdf
    • http://muicuiu.dumb1.com/5a01a04a04a08/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/1a00a00a06a01a09a02/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/5a05a02a06a06a08/Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/7a04a04a06a05a05/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/7a02a08a02a09a05/Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/5a05a07a06a02a06/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/1a01a08a02a04a00a03/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/8a05a06a09a06a09/The-Strange-Case-of-Dr-Jekyll-and-Mr-Hyde-by-Robert-Louis-Stevenson.pdf
    • http://muicuiu.dumb1.com/9a0

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