Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6075aa01a770c72…

MALICIOUS

PDF

25.1 KB Created: 2019-04-30 10:34:50 +01:00 Authoring application: mPDF 5.7
MD5: 92aa0240099d40bf01cda2d12b4d0e31 SHA-1: b5cde6f8c6070016c78c88fddea692ed566b58ff SHA-256: d6075aa01a770c729b671b9c85f8a236bbd163166acc74254d9b734aa59b7634
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these URLs were classified as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to redirect users to malicious content. The ML classifier also flagged the PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9742

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/7a02a02a01a09a09/Healthcare-Performance-Measurement-Systems-Design-and-Evaluation-by-Vahe-A-Kazandjian.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a09a07/Accountability-Through-Measurement-A-Global-Healthcare-Imperative-by-Vahe-Kazandijan.pdf
    • http://muicuiu.dumb1.com/6a03a06a03a00a01/Intelligent-Tutoring-Systems-in-E-Learning-Environments-Design-Implementation-and-Evaluation-by-Slavomir-Stankov.pdf
    • http://muicuiu.dumb1.com/1a00a06a00a03a08a05/Intelligent-Tutoring-Systems-in-E-Learning-Environments-Design-Implementation-and-Evaluation-by-Vlado-Glavinic.pdf
    • http://muicuiu.dumb1.com/7a02a02a00a08a09/Epidemiology-of-Quality-by-Vahe-A-Kazandjian.pdf
    • http://muicuiu.dumb1.com/7a02a02a02a04a09/The-Effectiveness-of-Cqi-in-Health-Care-by-Vahe-A-Kazandjian.pdf
    • http://muicuiu.dumb1.com/1a00a08a01a03a04a04/Complex-Systems-Design-amp-Management-Asia-Smart-Nations-Sustaining-and-Designing-Proceedings-of-the-Second-Asia-Pacific-Conference-on-Complex-Systems-Design-amp-Management-CSD-amp-M-Asia-2016-by-Michel-Alexandre-Cardin.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a08a05a06/Making-Software-Measurement-Work-Building-an-Effective-Measurement-Program-by-William-Hetzel.pdf
    • http://muicuiu.dumb1.com/7a03a07a02a07a04/Quality-Web-Systems-Performance-Security-and-Usability-by-Elfriede-Dustin.pdf
    • http://muicuiu.dumb1.com/1a00a03a05a07a05a06/Systems-Analysis-and-Design-by-Elias-M-Awad.pdf
    • http://muicuiu.dumb1.com/6a00a04a01a09a06/Computer-Systems-Design-and-Architecture-2e-by-Heuring.pdf
    • http://muicuiu.dumb1.com/5a08a08a02a05a06/Electronic-Design-Circuits-and-Systems-by-C-J-Savant.pdf
    • http://muicuiu.dumb1.com/5a08a08a06a02a07/Optimal-Design-of-Complex-Mechanical-Systems-by-Giampiero-Mastinu.pdf
    • http://muicuiu.dumb1.com/5a09a04a07a08a06/Distributed-Operating-Systems-Concepts-and-Design-by-Pradeep-K-Sinha.pdf
    • http://muicuiu.dumb1.com/1a00a01a06a01a06a02/Handbook-of-Improving-Performance-in-the-Workplace-Volume-1-Instructional-Design-and-Training-Delivery-by-Kenneth-Silber.pdf
    • http://muicuiu.dumb1.com/7a09a01a00a05a03/Co-Design-Approaches-for-Dependable-Networked-Control-Systems-by-Christophe-Aubrun.pdf
    • http://muicuiu.dumb1.com/6a00a04a01a09a05/Computer-Systems-Design-And-Architecture-Solutions-Manual-by-Vincent-P-Heuring.pdf
    • http://muicuiu.dumb1.com/7a09a01a01a04a03/Co-Design-Approaches-to-Dependable-Networked-Control-Systems-by-Daniel-Simon.pdf
    • http://muicuiu.dumb1.com/1a00a08a03a05a04a05/Multiagent-Systems-for-Manufacturing-Control-A-Design-Methodology-by-Stefan-Bussmann.pdf
    • http://muicuiu.dumb1.com/1a01a00a06a02a09a06/Contextual-Design-Defining-Customer-Centered-Systems-by-Hugh-Beyer.pdf
    • http://muicuiu.dumb1.com/1a00a06a00a03a08a05/Intelligent-Tutoring-S