Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b8bfb96f4a630ad…

MALICIOUS

PDF

26.5 KB Created: 2019-04-30 04:01:45 +01:00 Authoring application: mPDF 5.7
MD5: 10f1ec961641487380bf28a42b02b949 SHA-1: 89587ef35bb4c929f3c70e734f7e3602a9f4fcf2 SHA-256: 8b8bfb96f4a630ad72e6e6fbcdfc2825f0dd822ca0ce3c8db15cbd5654cea921
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which point to various book titles. The primary purpose appears to be to direct users to a link farm, likely for malicious redirection or to host further malicious content. While the specific URLs are marked as benign, the overall structure and heuristic firing indicate a deceptive pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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/1a00a09a05a08a07a05/Body-Language-7-Easy-Lessons-To-Master-The-Silent-Language-by-James-Borg.pdf
    • http://muicuiu.dumb1.com/5a00a02a07a00a08/Egyptian-Language-Easy-Lessons-in-Egyptian-Hieroglyphics-by-E-A-Wallis-Budge.pdf
    • http://muicuiu.dumb1.com/8a04a00a03a07/The-Silent-Language-by-Edward-T-Hall.pdf
    • http://muicuiu.dumb1.com/2a08a03a07a03a07/Body-Language-by-Aki-Morimoto.pdf
    • http://muicuiu.dumb1.com/3a05a06a05a09a01/Body-Language-by-Kenna-White.pdf
    • http://muicuiu.dumb1.com/7a01a07a04a06a03/Language-Files-Materials-for-an-Introduction-to-Language-and-Linguistics-by-Ohio-State-University.pdf
    • http://muicuiu.dumb1.com/3a03a01a07a09a06/Language-Learning-Secrets-Revealed-How-Anyone-can-Learn-a-Language-by-Peter-D-Campbell.pdf
    • http://muicuiu.dumb1.com/5a08a01a06a06a02/Computer-Learner-Corpora-Second-Language-Acquisition-and-Foreign-Language-Teaching-by-Sylviane-Granger.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a07a00a08/Language-Development-at-the-Crossroads-Papers-from-the-Interdisciplinary-Conference-on-Language-Acquisition-at-Passau-by-Sascha-W-Felix.pdf
    • http://muicuiu.dumb1.com/4a07a08a00a05/The-Language-Instinct-How-the-Mind-Creates-Language-by-Steven-Pinker.pdf
    • http://muicuiu.dumb1.com/1a01a03a02a09a03a09/The-Body-Language-of-Illness-by-Eleanor-Limmer.pdf
    • http://muicuiu.dumb1.com/3a05a02a05a05a02/English-Language-Learners-and-the-New-Standards-Developing-Language-Content-Knowledge-and-Analytical-Practices-in-the-Classroom-by-Margaret-Heritage.pdf
    • http://muicuiu.dumb1.com/4a06a05a07a01a07/The-Body-Language-Of-Horses-by-BONNIE-LEDBETTER-TOM-AINSLIE.pdf
    • http://muicuiu.dumb1.com/4a05a00a08a02a09/Dead-Body-Language-Connor-Westphal-1-by-Penny-Warner.pdf
    • http://muicuiu.dumb1.com/4a05a02a02a02a08/Flowers-of-Evil-and-Other-Works-Les-Fleurs-du-Mal-et-Oeuvres-Choisies-A-Dual-Language-Book-Dover-Foreign-Language-Study-Guides-by-Charles-Baudelaire.pdf
    • http://muicuiu.dumb1.com/1a04a01a03a00a08/Words-in-a-French-Life-Lessons-in-Love-and-Language-from-the-South-of-France-by-Kristin-Espinasse.pdf
    • http://muicuiu.dumb1.com/9a06a05a00a08a07/Learn-Spanish-the-Fast-and-Fun-Way-The-Activity-Kit-That-Makes-Learning-a-Language-Quick-and-Easy-by-Heywood-Wald.pdf
    • http://muicuiu.dumb1.com/4a04a07a08a08a08/The-Nonverbal-Advantage-Secrets-and-Science-of-Body-Language-at-Work-by-Carol-Kinsey-Goman.pdf
    • http://muicuiu.dumb1.com/9a07a07a07a07a03/Against-Language-quot-Dissatisfaction-with-Language-quot-as-Theme-and-as-Impulse-Towards-Experiments-in-Twentieth-Century-Poetry-by-Rosmarie-Waldrop.pdf
    • http://muicuiu.dumb1.com/6a01a06a00a02a07/The-New-Life-La-Vita-Nuova-A-Dual-Language-Book-Dover-Dual-Language-Italian-by-Dante-Alighieri.pdf
    • http://muicuiu.dumb1.com/3a05a06a0