MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains heuristics indicating it is a fake download lure, specifically targeting users looking for textbook rentals. The embedded URLs point to a domain designed to serve malicious files, suggesting an attempt to trick users into downloading malware. The document body, though partially corrupted, contains references to textbook rentals and search engine query terms, reinforcing the lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9062
Heuristics 4
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Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOADThe ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne 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://uncpbisdegree.com/download3.php?q=textbook-rental-places.pdf
- http://uncpbisdegree.com/download4.php?q=textbook-rental-places.pdf
- http://www.slugbooks.com/
- https://www.textbookrush.com/
- http://www.barnesandnobleinc.com/news/
- http://www.mymoneyblog.com/valore-books-review-textbook-sellback-experience.html
- https://www.lizmarieblog.com/2015/07/decorate-rental/
- https://www.propertyinvestmentproject.co.uk/blog/calculating-which-property-is-the-wiser-investment/
- https://www.propertyinvestmentproject.co.uk/blog/buying-property-tips/
- http://webgerman.com/germlinks/
- http://premieroceanfrontrentals.com/
- http://uncpbisdegree.com/1/textbook-rental-austin-tx.pdf
- http://uncpbisdegree.com/1/the-economics-of-globalization-policy-perspectives-from-public-economics.pdf
- http://riverside-resort.net/1/where-are-jews-from.pdf
- http://riverside-resort.net/1/valve-application-guide.pdf
- http://riverside-resort.net/1/virtual-reality-driving-lessons.pdf
- http://riverside-resort.net/1/world-war-ii-aircraft.pdf
- http://uncpbisdegree.com/1/solutions-a-first-course-on-atmospheric-thermodynamics.pdf
- http://uncpbisdegree.com/1/solution-focused-therapy-with-children.pdf
- http://riverside-resort.net/1/yfm350fw-bigbear-service-manual.pdf
- http://uncpbisdegree.com/1/sue-o-de-ranita.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.toptenreviews.com/services/education/best-textbook-rentals-online/
- https://en.wikipedia.org/wiki/Textbook
- https://www.usnews.com/news/articles/2012/08/28/how-your-textbook-dollars-are-divvied-up
- http://www.chegg.com/homework-help/a-first-course-in-probability-8th-edition-solutions-9780136033134
- http://www.chegg.com/homework-help/questions-and-answers/use-midpoint-rule-given-value-n-approximate-integral-round-answer-four-decimal-places-64-s-q5106930
- http://www.mlive.com/news/ann-arbor/index.ssf/2018/02/wcc_saves_students_27_million.html
- https://en.wikipedia.org/wiki/Economics
- https://www.amazon.com/Marketing-Management-Student-Value-15th/dp/0134236939
- https://www.amazon.com/books-used-books-textbooks/b?ie=UTF8&node=283155
- https://www.amazon.com/Business-Money-Investing-Books/b?ie=UTF8&node=3
- https://www.amazon.com/Marketing-Sales-Business-Investing-Books/b?ie=UTF8&node=2698
- https://www.zillow.com/blog/rental-property-depreciation-144131/
- https://www.amazon.com/Artificial-Intelligence-Modern-Approach-3rd/dp/0136042597
- https://www.amazon.com/Computers-Technology-Books/b?ie=UTF8&node=5
- https://www.amazon.com/Computer-Science-Computers-Internet-Books/b?ie=UTF8&node=3508
- http://soe.unc.edu/resources/technology/support/learn/index.php
- http://www.travelandleisure.com/articles/the-50-most-romantic-places-on-earth
- https://www.nps.gov/nr/travel/louisiana/text.htm
- https://www.telegraph.co.uk/property/
- https://www.forbes.com/sites/susanadams/2015/01/30/the-10-best-websites-for-finding-an-internship/
- https://www.lonelyplanet.com/denmark
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409
- https://go.microsoft.com/fwlink/?linkid=868922
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409
- http://go.microsoft.com/fwlink/?LinkID=617297
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004e9a.binf108bd85e33534982601abd626c8bf9c769d69660b7aa23d7fd5e213f2e54571 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E9A | 10344 bytes |
font_01_sfnt_off00006f89.bin141cc3c9cf055d88de52d8aa2586e17abde8a447ba72673087aa159604983897 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F89 | 6916 bytes |
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