Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89bcadf7baaa0ea…

MALICIOUS

PDF

20.3 KB Created: 2019-04-29 23:36:24 +01:00 Authoring application: mPDF 5.7
MD5: e5d06ed95b82a7830e7a36b8c31081a7 SHA-1: 04f57bad1554f0e2518dd50411c94a104557b948 SHA-256: d89bcadf7baaa0ea2642952b6770714e8f94eaba4cda8c85992f25f7e8b8e8c9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. While no scripts were explicitly extracted, the PDF structure and the sheer volume of links suggest an attempt to redirect users to potentially harmful content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9805

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/9a02a08a01a09a07/MOBY-DICK-or-the-White-Whale-Special-Illustrated-Edition-Annotated-with-Criticisms-and-Interpretations-Free-Audio-Links-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/7a01a03a01a06a08/Moby-Dick-By-Herman-Melville---Illustrated-And-Unabridged-FREE-AUDIOBOOK-INCLUDED-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a08a01a00a00/Moby-Dick-or-the-White-Whale-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a04a03a02a06a06/Moby-Dick-or-The-Whale-Volume-6-Scholarly-Edition-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/9a01a01a04a00a07/Moby-Dick-Or-the-Whale-Collector-s-Edition-The-100-Greatest-Books-Ever-Written-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/4a05a02a00a09a04/Moby-Dick-or-The-Whale-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a00a03a06a02a06/Moby-Dick-or-The-Whale-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a07a05a06/Moby-Dick-or-The-Whale-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/7a02a01a06a09a06/Moby-Dick-or-the-Whale---Original-Version-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a02a03a06a03a01/Alice-s-Adventures-In-Wonderland---Enhanced-E-Book-Edition-Fully-Illustrated-and-Annotated-Special-Edition-Includes-Stunning-Image-Gallery-Movie-List-Audio-Links-by-Lewis-Carroll.pdf
    • http://muicuiu.dumb1.com/7a02a01a04a09a09/Moby-Dick-Walker-Illustrated-Classics-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/9a07a09a07a03a00/----Melvill-Mobi-Dik-ili-Belyy-Kit-Moby-Dick-or-The-Whale-Books-in-Russian---by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/7a08a07a09a01a02/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/9a05a09a00a06a03/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a07a00a03a06a08/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/8a01a05a02a00a03/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a02a05a07a04/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/5a09a05a09a03a02/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/2a09a02a02a07a01/Moby-Dick-by-Herman-Melville.pdf
    • http://muicuiu.dumb1.com/2a00a05a01a00a04/Moby-Dick-by-Herman-Melville.pdf

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