MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file contains embedded links that direct users to download a file from 'uncpbisdegree.com'. The ML classifier flagged this PDF as malicious with a high probability. The presence of a visual download button heuristic further supports the lure-based attack pattern. The primary intent appears to be tricking the user into downloading a potentially malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9515
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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PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARMPDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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=the-westminster-shorter-catechism-with-cartoons.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=the-westminster-shorter-catechism-with-cartoons.pdfIn PDF document text
- http://www.clarkprosecutor.org/html/links/dplinks.htmIn PDF document text
- http://www.berro.com/common_text/text_5.htmIn PDF document text
- http://kinkadefunerals.com/search_obit.php?quy_str=DIn PDF document text
- http://www.ideadiez.com/In PDF document text
- http://www.lextutor.ca/freq/lists_download/brown_freq.xlsIn PDF document text
- http://unifeob.edu.br/miniblog/henry-steiner-cabins-masters-thesisIn PDF document text
- http://riverside-resort.net/1/synthesis-of-yoga-us-edition.pdfIn PDF document text
- http://riverside-resort.net/1/textbook-evaluation-form.pdfIn PDF document text
- http://riverside-resort.net/1/terex-rci-500-skyazul-crane-and-heavy-equipment-solutions.pdfIn PDF document text
- http://riverside-resort.net/1/tu-aliento-melissa-panarello.pdfIn PDF document text
- http://riverside-resort.net/1/team-leading-answers.pdfIn PDF document text
- http://riverside-resort.net/1/the-other-duke-notorious-flynns-1-jess-michaels.pdfIn PDF document text
- http://riverside-resort.net/1/shop-vac-5862000-vacuums-owners-manual.pdfIn PDF document text
- http://riverside-resort.net/1/the-handle-a-parker-novel-parker-novels.pdfIn PDF document text
- http://riverside-resort.net/1/shadow-of-the-past.pdfIn PDF document text
- http://riverside-resort.net/1/toyota-truck-manual.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://www.nationalreview.com/corner/donald-trump-evangelical-supporters-stormy-daniels/In PDF document text
- http://www.patheos.com/blogs/joeljmiller/2011/02/god-made-us-to-love-us-so-we-can-love-too/In PDF document text
- http://gatesofvienna.blogspot.com/In PDF document text
- https://www.onelook.com/pm/In PDF document text
- http://www.dictionary.com/e/s/word-of-the-year-list/In PDF document text
- http://www.loot.co.za/index/html/index2410.htmlIn PDF document text
- http://gutenberg.net.au/ebooks14/1400681h.htmlIn PDF document text
- http://gutenberg.net.au/ebooks03/0300011h.htmlIn PDF document text
- https://view.officeapps.live.com/op/view.aspx?src=http%3A%2F%2Fwww.lextutor.ca%2Ffreq%2Flists_download%2Fbrown_freq.xlsIn PDF document text
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
- https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00003fa3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3FA3 | 10596 bytes |
SHA-256: c53557a0bdb0de49e60ac6cf0a3973abc322268b9d89b5b0c941ed9e45a8d54c |
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font_01_sfnt_off00006139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6139 | 6668 bytes |
SHA-256: eed86ae3efa076eda144f76ece0d7f313e098a45519b4fc6e62238619c1add9d |
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