MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file contains embedded URLs that mimic a legitimate download link for a study guide. 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 IOC is the suspicious download URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9340
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=study-guide-for-socks-by-beverly-cleary.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=study-guide-for-socks-by-beverly-cleary.pdfIn PDF document text
- http://www.chebeague.org/In PDF document text
- http://www.pivotalkids.com/fiction_activities.htmIn PDF document text
- http://www.edhelper.com/ReadingComprehensions_Grade3.htmlIn PDF document text
- http://www.surnames.org/genealogy/heraldry/coats/family.htmIn PDF document text
- http://nancykeane.com/booktalks/authlist.htmIn PDF document text
- http://simplehomeschool.net/top-25-read-alouds/In PDF document text
- http://hamburggermany.men/Jaboatao_Dos_Guarapes-Brazil/Jaboatao_Dos_Guarapes-Brazil_bb.phpIn PDF document text
- http://www.modocrecord.com/Archives2003.htmlIn PDF document text
- http://buratto-map.net/spot.php?id=245In PDF document text
- http://riverside-resort.net/1/words-that-work-it-apos-s-not-what-you-say-it-apos-s-what-people-hear.pdfIn PDF document text
- http://riverside-resort.net/1/walmart-dc-maintenance-test.pdfIn PDF document text
- http://uncpbisdegree.com/1/short-stories-set-4-vols.pdfIn PDF document text
- http://uncpbisdegree.com/1/service-manual-1999-honda-trx300ex-fourtrax.pdfIn PDF document text
- http://uncpbisdegree.com/1/solid-state-voltage-stabilizer-circuit-diagram.pdfIn PDF document text
- http://uncpbisdegree.com/1/solving-with-radians-tesccc.pdfIn PDF document text
- http://uncpbisdegree.com/1/statistical-modeling-analysis-and-management-of-fuzzy-data-1st-edition.pdfIn PDF document text
- http://riverside-resort.net/1/united-nations-general-assembly-resolution-3314.pdfIn PDF document text
- http://uncpbisdegree.com/1/semantic-structures-advances-in-natural-language-processing.pdfIn PDF document text
- http://riverside-resort.net/1/world-great-political-thinkers.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.readingrockets.org/books/interviews/clearyIn PDF document text
- https://www.yahoo.com/lifestyle/tagged/health/In PDF document text
- http://www.philly.com/philly/archives/In PDF document text
- https://www.onelook.com/pm/In PDF document text
- http://crhadley.dadeschools.net/ARQuizinfo.htmIn PDF document text
- https://www.amazon.com/books-used-books-textbooks/b?node=283155In PDF document text
- http://www.loot.co.za/index/html/index95.htmlIn PDF document text
- https://www.news.com.au/videoIn PDF document text
- https://www.google.com/?gws_rd=sslIn PDF document text
- http://www.dailymail.co.uk/auhome/index.html?pid=2015001In PDF document text
- http://www.microsofttranslator.com/bv.aspx?ref=SERP&br=ro&mkt=en-US&dl=en&lp=JA_EN&a=http%3a%2f%2fburatto-map.net%2fspot.php%3fid%3d245In 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_off00004675.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4675 | 10412 bytes |
SHA-256: 696c9b3287f90fe63877c3c0f408d3592aa3c99a4f2ac0479dc1735d394e1e95 |
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font_01_sfnt_off000067a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A0 | 7472 bytes |
SHA-256: a2740bf1f06414c6ef3e13eaa21afdadc6e7ed87277218570944a66bb3b0410d |
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