Malicious PDF — malware analysis report

Static analysis result for SHA-256 800918f7e3e56604…

MALICIOUS

PDF

16.6 KB Created: 2019-05-05 15:41:15 +01:00 Authoring application: mPDF 5.7
MD5: fb20414adf1d9886074715be1af09017 SHA-1: 22f68e9b2dcd935e8c7c7fd968b85669915c88b1 SHA-256: 800918f7e3e566046109e9d8a805a1bf61afe5349e12d8acfb8c32f9bdbfe769
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, disguised as book downloads. This is indicative of a link farm or SEO poisoning attack, likely intended to lead users to malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/2a03a04a04a06a02/The-Heart-Of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/7a07a01a00a03a05/Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a00a04a01a08a02a01/Heart-of-Darkness-with-eBook-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/9a03a08a06a02a06/Heart-of-Darkness-illustrated-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/2a01a05a04a04a02/Heart-of-Darkness-and-The-Secret-Sharer-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/7a07a00a00a06a05/Heart-of-Darkness-Vintage-Voyages-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a08a05a03a09a06/Heart-of-Darkness-in-comprehensible-English-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a07a04a01a08a06/Heart-of-Darkness-Original-and-Unabridged-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/6a08a05a04a03a02/Collins-Classics---Heart-of-Darkness-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a03a09a06a05a06/Youth-Heart-of-Darkness-The-End-of-the-Tether-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/3a03a03a08a07/Heart-of-Darkness-and-The-Secret-Sharer-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/9a08a05a01a09a03/Heart-of-Darkness-A-Novella-in-Three-Parts-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/3a01a09a08a02a04/Heart-of-Darkness-and-Selected-Short-Fiction-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/9a07a09a06a08a03/Heart-of-Darkness-Das-Herz-Der-Finsternis-English---German-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/9a00a09a01a09a05/Heart-of-Darkness-Centaur-Classics-The-100-greatest-novels-of-all-time---28-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a00a04a07a07a07a02/Heart-of-Darkness-British-Classics-Series-Including-Author-s-Memoirs-Letters-amp-Critical-Essays-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/1a00a05a06a07a03a00/The-Joseph-Conrad-Collection-by-Joseph-Conrad.pdf
    • http://muicuiu.dumb1.com/5a05a01a08a09/Nostromo-by-Joseph-Conrad.pdf

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