Malicious PDF — malware analysis report

Static analysis result for SHA-256 41c043f11d3bc692…

MALICIOUS

PDF

15.4 KB Created: 2019-05-07 03:34:55 +01:00 Authoring application: mPDF 5.7
MD5: 2cb8a30e14831095a99db081971be898 SHA-1: 96048d457ecdcbf50293738df07ede9ab38b2ce6 SHA-256: 41c043f11d3bc69205005f5b4e923b5b1871eba0128b4afe2972a1728cfdf579
90 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external resources, identified by the PDF_SEO_LINK_FARM heuristic. While many of these links were classified as benign, the sheer volume and the ML_NYX_PDF_MALICIOUS flag indicate a malicious intent, likely for SEO manipulation or to serve as a landing page for further malicious activity. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/3a02a08a09a01/The-Complete-Anne-of-Green-Gables-Boxed-Set-Anne-of-Green-Gables-1-8-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a08a03a09a07a01/Anne-of-Green-Gables-Anne-of-Green-Gables-Series-1-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a07a04a01a00a05/Anne-Of-Green-Gables-By-L-M-Montgomery-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/7a03a04a03a07/Anne-of-Green-Gables-Anne-Shirley-Series---The-Complete-Collection-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/4a04a01a09a08a03/The-Anne-Stories-Anne-of-Green-Gables-1-3-5-7-8-Story-Girl-1-2-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a02a03a06a06a02/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/1a00a09a09a04a00a06/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/7a00a02a07a06a02/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/4a03a01a04a01a01/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/4a05a00a07a08a07/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/3a01a07a02a09a08/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/3a05a03a01a02a07/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a07a04a09a08a05/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a07a06a07a00a07/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a05a04a03a08a03/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/7a02a00a05a02a01/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/1a06a02a01a07a06/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/3a05a00a03a08a07/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/5a00a04a06a01a09/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/3a01a03a04a05a04/Anne-of-Green-Gables-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/1a00a09a09a04a00a06/Anne-o

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