Malicious PDF — malware analysis report

Static analysis result for SHA-256 9574c0005d3630de…

MALICIOUS

PDF

12.2 KB Created: 2019-05-05 15:44:30 +01:00 Authoring application: mPDF 5.7
MD5: 0d8882cd708493146d69d1c903dfa827 SHA-1: efc537f5692fd125d7ab6fc20b47dec0236a5647 SHA-256: 9574c0005d3630de644e7ce79c7f34df70f3d7ad6a312fb6999f4cba97e3a3ff
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 to external URLs, a technique commonly used for SEO spam or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While the specific intent beyond link farming is unclear, the pattern suggests a lure to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8737

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/6a05a01a08a09a09/Heart-of-Darkness-Joseph-Conrad-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a01a08a07a01a03a07/Heart-of-Darkness-the-Classic-Novel-by-Joseph-Conrad-Classic-Books-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a00a05a06a07a03a00/The-Joseph-Conrad-Collection-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/3a09a06a09a07a00/The-Return-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a08a00a05a03a03/Lord-Jim-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/4a07a09a01a02a09/Lord-Jim-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/9a07a01a00a09a08/Lord-Jim-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a08a02a09a08a05/Lord-Jim-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/7a05a01a01a06a01/Nostromo-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a03a07a09a00a00/Romance-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/2a02a05a07a09a05/The-Mirror-of-the-Sea-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a05a01a08a09/Nostromo-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/2a09a02a02a05a09/Typhoon-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a08a03a05a01a04/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/8a08a03a04a05a01/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a01a05a07a02a08a02/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/2a02a05a04a04a09/The-Nigger-of-the-Narcissus-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/6a00a03a09a00a02/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/7a07a01a00a03a05/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/6a01a05a09a07a06/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/8a08a03a04a05a01/Heart-of-Darkness-by-Joseph-Conrad

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