Malicious PDF — malware analysis report

Static analysis result for SHA-256 26553259a8225457…

MALICIOUS

PDF

14.8 KB Created: 2019-04-30 04:26:00 +01:00 Authoring application: mPDF 5.7
MD5: 48e1a89ea7a97bbe8e98222e8135258b SHA-1: 6c4bb661907a758edb625036eb14655902d5e906 SHA-256: 26553259a82254577b2bebec4df9fff5a03e9458b24a12c45eea23a6d674b7b6
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to book titles, suggesting a lure to download pirated content or engage in SEO manipulation. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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.co
    • http://muicuiu.dumb1.com/1a01a06a03a00a08/The-Last-Precinct-Kay-Scarpetta-11-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/2a08a04a07a06a00/Scarpetta-s-Winter-Table-Kay-Scarpetta-9-5-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a06a08a04a00a07/The-Scarpetta-Factor-Kay-Scarpetta-17-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/7a06a06a02a01/Scarpetta-Kay-Scarpetta-16-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a03a07a02a06a02/Scarpetta-Kay-Scarpetta-16-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/2a02a01a00a09a02/Red-Mist-Kay-Scarpetta-19-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a06a03a07a00a04/Postmortem-Kay-Scarpetta-1-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a09a00a08a05/Cause-of-Death-Kay-Scarpetta-7-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a01a04a09a08a02/Blow-Fly-Kay-Scarpetta-12-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/4a04a02a08/Chaos-Kay-Scarpetta-24-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a01a06a04a01a01/Trace-Kay-Scarpetta-13-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/8a03a06a01a08/Black-Notice-Kay-Scarpetta-10-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/3a03a09a05a09/The-Body-Farm-Kay-Scarpetta-5-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a00a04a05a03a02a08/Cruel-and-Unusual-Kay-Scarpetta-4-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a05a07a07a06a06/Depraved-Heart-Kay-Scarpetta-23-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/1a01a06a06a04a04/Book-of-the-Dead-Kay-Scarpetta-15-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/2a08a09a06a08a06/Port-Mortuary-Kay-Scarpetta-18-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/7a03a00a01a01a05/Une-peine-d-exception-Une-enqu-te-de-Kay-Scarpetta-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/7a08a07a06a05a04/M-moires-mortes-Une-enqu-te-de-Kay-Scarpetta-by-Patricia-Cornwell.pdf
    • http://muicuiu.dumb1.com/7a03a00a02a01a08/Tra-n-e-de-poudre-Une-enqu-te-de-Kay-Scarpetta-by-Patricia-Cornwell.pdf

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