Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a45f798ffc4396…

MALICIOUS

PDF

18.6 KB Created: 2019-04-30 01:46:01 +01:00 Authoring application: mPDF 5.7
MD5: 2b60b04f9366a6f504a6e3ab3ec10156 SHA-1: 1e70c171e2d190508b290734c3d0087f1ac42d60 SHA-256: d4a45f798ffc439613c72b7ba46fbcd1593eb1a7126d68b999ca0882313e707e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the specific URLs extracted were classified as benign, the sheer volume and the heuristic firing of PDF_SEO_LINK_FARM suggest a malicious intent to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://xiixmcuin.linkpc.net/2204201207205208/The-Wrecked-Blessed-Body-of-Shelton-LaFleur-by-John-Gregory-Brown.pdf
    • http://xiixmcuin.linkpc.net/3206209209204/John-Brown-s-Body-by-A-L-Barker.pdf
    • http://xiixmcuin.linkpc.net/2203203202209/John-Brown-s-Body-by-Stephen-Vincent-Ben-t.pdf
    • http://xiixmcuin.linkpc.net/2208206209200203/Shelton-in-Love-Shelton-1-by-Dianne-Hartsock.pdf
    • http://xiixmcuin.linkpc.net/1202209207203200/The-Myth-Of-The-American-Superhero-by-John-Shelton-Lawrence.pdf
    • http://xiixmcuin.linkpc.net/2207202204206208/Body-by-Science-A-Research-Based-Program-for-Strength-Training-Body-Building-and-Complete-Fitness-in-12-Minutes-a-Week-by-John-Little.pdf
    • http://xiixmcuin.linkpc.net/4206209201203209/Southern-Folk-Plain-amp-Fancy-Native-White-Social-Types-by-John-Shelton-Reed.pdf
    • http://xiixmcuin.linkpc.net/2202208207202202/Love-s-Body-by-Norman-O-Brown.pdf
    • http://xiixmcuin.linkpc.net/1206201209209203/The-Habitation-of-the-Blessed-A-Dirge-for-Prester-John-1-by-Catherynne-M-Valente.pdf
    • http://xiixmcuin.linkpc.net/2202200209200205/Blessed-Fate-Blessed-Tragedy-2-by-H-B-Heinzer.pdf
    • http://xiixmcuin.linkpc.net/1207203205201206/Blessed-Chance-Blessed-Tragedy-3-by-H-B-Heinzer.pdf
    • http://xiixmcuin.linkpc.net/8209202204203205/Charlie-Brown-s-Cyclopedia-Vol-1-Featuring-Your-Body-by-Funk-amp-Wagnalls.pdf
    • http://xiixmcuin.linkpc.net/3201206208203202/The-Blessed-The-Blessed-1-by-Tonya-Hurley.pdf
    • http://xiixmcuin.linkpc.net/2205202208204201/Feed-Me-Writers-Dish-About-Food-Eating-Weight-and-Body-Image-by-Harriet-Brown.pdf
    • http://xiixmcuin.linkpc.net/1206202203202203/Awakening-Kings-and-Princes-Volume-I-Sacred-Knowledge-to-Nourish-the-Mentality-Support-Spiritual-Growth-Learning-the-Light-and-Progressing-to-Become-a-Master-Lover-While-Embracing-Desire-by-John-Shelton-Jones.pdf
    • http://xiixmcuin.linkpc.net/9204201201203203/The-Tribunal-Responses-to-John-Brown-and-the-Harpers-Ferry-Raid-by-John-Stauffer.pdf
    • http://xiixmcuin.linkpc.net/8200206200206200/The-Turquoise-Mountain-Brian-Blessed-on-Everest-by-Brian-Blessed.pdf
    • http://xiixmcuin.linkpc.net/4205208203202203/Johnny-Zed-by-John-Gregory-Betancourt.pdf
    • http://xiixmcuin.linkpc.net/8201201202208205/Horror-The-Best-of-the-Year-2006-Edition-by-John-Gregory-Betancourt.pdf
    • http://xiixmcuin.linkpc.net/3209206208204203/Counting-to-Perfect-by-Suzanne-LaFleur.pdf
    • http://xiixmcuin.linkpc.net/4206209201203209/

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