Malicious PDF — malware analysis report

Static analysis result for SHA-256 e937da3b5c6c42c9…

MALICIOUS

PDF

16.0 KB Created: 2019-05-05 12:05:36 +01:00 Authoring application: mPDF 5.7
MD5: 3d04db0ad8074800de8f466dbd5a2179 SHA-1: 38b0c41caa7aed764b6b4c2871702c28727b4ad2 SHA-256: e937da3b5c6c42c97b9e64cb0066b0e6a77fae902f3348538d7e650879e8ba6e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The primary function appears to be directing users to a vast collection of external websites, likely for SEO spam or to host further malicious content. 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/3a05a09a05a01a03/Deception-in-Paradise-Paradise-2-by-Deborah-Brown.pdf
    • http://muicuiu.dumb1.com/1a03a03a06a08a05/Ambushed-in-Paradise-Paradise-12-by-Deborah-Brown.pdf
    • http://muicuiu.dumb1.com/2a08a06a06a05a02/Swindled-in-Paradise-Paradise-8-by-Deborah-Brown.pdf
    • http://muicuiu.dumb1.com/4a01a08a04a00a09/Revenge-in-Paradise-Paradise-6-by-Deborah-Brown.pdf
    • http://muicuiu.dumb1.com/8a03a01a06a03a04/Puppies-in-Paradise-Tj-Jensen-Paradise-Lake-Mystery-5-by-Kathi-Daley.pdf
    • http://muicuiu.dumb1.com/3a07a09a02a05a09/Christmas-in-Paradise-TJ-Jensen-Paradise-Lake-Mysteries-4-by-Kathi-Daley.pdf
    • http://muicuiu.dumb1.com/5a00a04a00a01/Paradise-Lost-and-Paradise-Regained-by-John-Milton.pdf
    • http://muicuiu.dumb1.com/8a08a04a07a06a00/Back-to-Paradise-Leaving-Paradise-2-by-Simone-Elkeles.pdf
    • http://muicuiu.dumb1.com/1a06a02a03a08a06/This-Side-of-Paradise-Paradise-1-by-Steven-L-Layne.pdf
    • http://muicuiu.dumb1.com/4a09a01a05a07a04/Letting-Go-A-Felicity-Paradise-Crime-Novel-by-Deborah-Fowler.pdf
    • http://muicuiu.dumb1.com/4a08a02a01a06a05/Next-Stop-Paradise-by-Sue-Civil-Brown.pdf
    • http://muicuiu.dumb1.com/3a00a02a02a04a04/Trouble-in-Paradise-by-Carolyn-Brown.pdf
    • http://muicuiu.dumb1.com/2a06a05a00a07a06/The-Last-Lord-of-Paradise-Generation-One-Jeanne-and-Anton-The-Last-Lord-of-Paradise-a-Family-Saga-of-Early-Michigan-French-1-by-Vivian-LeMay.pdf
    • http://muicuiu.dumb1.com/3a01a07a08a08a01/Cat-Paradise-1-Cat-Paradise-1-by-Yuji-Iwahara.pdf
    • http://muicuiu.dumb1.com/3a05a08a09a05a00/Paradise-Road-Paradise-2-by-C-J-Duggan.pdf
    • http://muicuiu.dumb1.com/1a04a06a04a02a00/Paradise-City-Paradise-1-by-C-J-Duggan.pdf
    • http://muicuiu.dumb1.com/2a09a03a03a00a04/Dark-Paradise-Dark-Paradise-1-by-Angie-Sandro.pdf
    • http://muicuiu.dumb1.com/2a00a08a04a02a05/Paradise-Barn-Paradise-Barn-1-by-Victor-Watson.pdf
    • http://muicuiu.dumb1.com/1a01a09a09a00/Leaving-Paradise-Leaving-Paradise-1-by-Simone-Elkeles.pdf
    • http://muicuiu.dumb1.com/4a07a01a08a01a05/Paradise-Kiss-Vol-2-Paradise-Kiss-2-by-Ai-Yazawa.pdf
    • http://muicuiu.dumb1.com/2a0

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