Malicious PDF — malware analysis report

Static analysis result for SHA-256 949d0e8ff2eb5a4c…

MALICIOUS

PDF

21.4 KB Created: 2019-04-29 23:16:48 +01:00 Authoring application: mPDF 5.7 First seen: 2021-08-20
MD5: fd5e828a23bd5bb903e7a37ed90ab110 SHA-1: 1a25f5b784385e86983a86f6bab475ad35aa08f3 SHA-256: 949d0e8ff2eb5a4c6c05ddab03ddbf5888b744f9e539b2a4f122a4df5ab3bb93
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, disguised as academic papers, which is a common tactic for SEO link farms and potentially malicious redirection. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lure users to external sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/7a02a02a00a08a09/Epidemiology-of-Quality-by-Vahe-A-Kazandjian.pdf In PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a04a09/The-Effectiveness-of-Cqi-in-Health-Care-by-Vahe-A-Kazandjian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a01a09a09/Healthcare-Performance-Measurement-Systems-Design-and-Evaluation-by-Vahe-A-Kazandjian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a06a04a05a04a01/Enhancing-Quality-of-Web-Service-Based-Cooperative-Business-Processes--Definition-and-Monitoring-of-Quality-Constraints-by-Tobias-Berr.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a07a03a04a08a01/Axiomatic-Quality-Integrating-Axiomatic-Design-with-Six-Sigma-Reliability-and-Quality-Engineering-by-Basem-S-El-Haik.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a09a09a07a03a07/HIV-and-AIDS-in-Africa-Beyond-Epidemiology-by-Ezekiel-Kalipeni.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a02a04a05a03a07/Forensic-Epidemiology-in-the-Global-Context-by-Sana-Loue.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a00a09a09a06a06a06/Psychiatric-Epidemiology-Searching-for-the-Causes-of-Mental-Disorders-by-Ezra-S-Susser.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a00a00a04/Cigars-by-Vahe-Gerard.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a06a08a05a05/The-Lean-Six-SIGMA-Pocket-Toolbook-A-Quick-Reference-Guide-to-Nearly-100-Tools-for-Improving-Quality-and-Speed-A-Quick-Reference-Guide-to-70-Tools-for-Improving-Quality-and-Speed-by-Michael-L-George.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a00a06a04/The-Pink-Elephant-by-Vahe-Berberoan.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a00a05a09/When-Two-Souls-Meet-by-Vahe-Salibian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a08a07a07a08a08/Mausner-amp-Bahn-Epidemiology-An-Introductory-Text-by-Judith-S-Mausner.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a01a00/Student-s-World-Atlas-by-Vahe-Movsessian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a03a06/When-Two-Souls-Meet-Come-and-Ride-the-Wave-by-Vahe-Salibian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a00a04a05/A-Photographic-Journey-of-my-Homeland-Armenia-by-Vahe-Peroomian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a00a06/Time-The-Silent-Witness-The-People-of-Armen-by-Vahe-Koroghlian.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a00a09a07/Accountability-Through-Measurement-A-Global-Healthcare-Imperative-by-Vahe-Kazandijan.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a00a01/Ishkhane-Vanay-Ishkhani-Keank-n-U-Gortsuneut-yune-by-Vahe-Tashchean.pdfIn PDF document text
    • http://muicuiu.dumb1.com/7a02a02a02a05a02/Daily-Life-in-the-Abyss-Genocide-Diaries-1915-1918-by-Vah-Tachjian.pdfIn PDF document text

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