Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d8f40207bbf6883…

MALICIOUS

PDF

16.1 KB Created: 2019-04-30 07:05:11 +01:00 Authoring application: mPDF 5.7
MD5: 7e60937acf3b1cc98ab5e34a280bf691 SHA-1: 6c4fe3331c4f8bd817f70fed7ce2bc7b26eb6b66 SHA-256: 0d8f40207bbf6883f1cdf34d32da7a668b09a27be2365829547231d5fddfc489
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, masquerading as book titles, which is indicative of a link farm designed to redirect users. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of numerous links and the heuristic firing for a 'PDF_SEO_LINK_FARM' strongly suggest a malicious intent to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

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/1a07a04a05a08a05/Bound-A-Faery-Story-1-by-Sophie-Oak.pdf
    • http://muicuiu.dumb1.com/2a00a06a02a03a09/Beauty-A-Faery-Story-3-by-Sophie-Oak.pdf
    • http://muicuiu.dumb1.com/2a09a09a04a09a09/The-Faery-Truth-Tonawanda-Faery-Tales-2-by-Vicktor-Alexander.pdf
    • http://muicuiu.dumb1.com/2a08a09a07a09a02/Shaman-Pathways---Way-of-the-Faery-Shaman-The-Book-of-Spells-Incantations-Meditations-amp-Faery-Magic-by-Flavia-Kate-Peters.pdf
    • http://muicuiu.dumb1.com/9a04a08a05a04a01/Bound-By-Blood-The-True-Story-Of-The-Wollongong-Murders-by-John-Suter-Linton.pdf
    • http://muicuiu.dumb1.com/1a08a05a05a06a00/Bound-by-Ice-A-True-North-Pole-Survival-Story-by-Sandra-Neil-Wallace.pdf
    • http://muicuiu.dumb1.com/9a00a07a01a01a02/Sophie-s-War-The-Journal-Of-Anna-Sophie-Franziska-Guenther-by-Janice-Shefelman.pdf
    • http://muicuiu.dumb1.com/4a07a09a00a01a09/Sophie-and-the-Wax-Doll-Bilingual-Sophie-s-Misfortunes-1-by-Comtesse-de-S-gur.pdf
    • http://muicuiu.dumb1.com/1a01a08a02a09a06a04/Sophie-the-Chatterbox-Sophie-Miller-3-by-Lara-Bergen.pdf
    • http://muicuiu.dumb1.com/3a03a03a09a05a04/Bound-by-Lies-Bound-and-Broken-2-by-Rebecca-Shea.pdf
    • http://muicuiu.dumb1.com/3a05a04a00a06a00/Bound-by-Wreckage-Ravage-MC-Bound-6-by-Ryan-Michele.pdf
    • http://muicuiu.dumb1.com/4a01a00a07a03a00/Bound-by-Destiny-Ravage-MC-Bound-5-by-Ryan-Michele.pdf
    • http://muicuiu.dumb1.com/3a09a08a09a07a09/Bound-by-Desire-Ravage-MC-Bound-2-by-Ryan-Michele.pdf
    • http://muicuiu.dumb1.com/7a05a02a03a00a07/Bound-by-Vengeance-Ravage-MC-Bound-3-by-Ryan-Michele.pdf
    • http://muicuiu.dumb1.com/2a07a05a06a09a09/Sophie-the-Awesome-Sophie-1-by-Lara-Bergen.pdf
    • http://muicuiu.dumb1.com/2a05a09a07a00a06/Bound-by-Lies-The-Bound-Series-1-by-S-E-Gilchrist.pdf
    • http://muicuiu.dumb1.com/2a05a07a00a00/Bound-by-Night-Bound-1-by-Amanda-Ashley.pdf
    • http://muicuiu.dumb1.com/4a07a02a07a04a08/Bound-by-Lies-Bound-1-by-Hanna-Peach.pdf
    • http://muicuiu.dumb1.com/2a00a06a00a00a04/Bound-by-Blood-Bound-1-by-Cynthia-Eden.pdf
    • http://muicuiu.dumb1.com/2a05a09a08a08a05/Bound-by-Love-The-Bound-Series-2-by-S-E-Gilchrist.pdf

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