MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file contains embedded URLs that point to a domain associated with downloading files, specifically named 'verbal-reasoning-3-bk-3.pdf'. The ML classifier flagged this PDF as malicious with a high probability. The presence of a download button heuristic further supports the lure. The document body, though partially corrupted, contains references to the same download URLs and a 'verbal reasoning' theme, suggesting a social engineering attempt to trick users into downloading a malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9454
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=verbal-reasoning-3-bk-3.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=verbal-reasoning-3-bk-3.pdfIn PDF document text
- http://www.plexoft.com/SBF/B03.htmlIn PDF document text
- https://www.educationumbrella.com/btec-nationals-health-and-social-care-student-bk-1/9781292126012/2/1In PDF document text
- http://www.amblesideonline.org/CM/vol4complete.htmlIn PDF document text
- http://worldcompanyjob.com/big-four/verbal-reasoning-tests/In PDF document text
- http://tamilcube.com/sanskrit-books/In PDF document text
- https://scout.com/college/auburnIn PDF document text
- http://www.geekinterview.com/Interview-Questions/General/AnalyticalIn PDF document text
- http://njhpi.com/In PDF document text
- http://www.geekinterview.com/Interview-Questions/Accounting/General-LedgerIn PDF document text
- http://www.andrewhammond.org/In PDF document text
- https://www.questionpaperz.in/rbi-assistant-syllabus-pattern/In PDF document text
- http://www.galbithink.org/sense-s4.htmIn PDF document text
- http://www.narcissistswife.com/19-signs-married-to-a-narcissist/3/In PDF document text
- http://riverside-resort.net/1/solutions-pre-intermediate.pdfIn PDF document text
- http://riverside-resort.net/1/the-pelican-brief-john-grisham.pdfIn PDF document text
- http://riverside-resort.net/1/soldiers-and-politicians.pdfIn PDF document text
- http://riverside-resort.net/1/the-bodys-rapture.pdfIn PDF document text
- http://riverside-resort.net/1/sony-dcr-sr45-manual.pdfIn PDF document text
- http://riverside-resort.net/1/the-call-of-home.pdfIn PDF document text
- http://riverside-resort.net/1/the-toughest-indian-in-the-world.pdfIn PDF document text
- http://riverside-resort.net/1/the-mystic-eye.pdfIn PDF document text
- http://riverside-resort.net/1/the-samkhya-philosophy.pdfIn PDF document text
- http://riverside-resort.net/1/the-savage-wars-of-peace-small-and-rise-american-power-max-boot.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://en.wikipedia.org/wiki/FallacyIn PDF document text
- https://www.amazon.com/GMAT-Official-Guide-2019-Bundle/dp/1119507723In PDF document text
- https://www.amazon.com/Business-Finance-Books/b?ie=UTF8&node=468220In PDF document text
- http://www.econlib.org/library/Smith/smWN0.htmlIn PDF document text
- http://www.econlib.org/library/classics.htmlIn PDF document text
- http://www.econlib.org/library/classicsauS.html#smithIn PDF document text
- https://en.wikipedia.org/wiki/AutismIn PDF document text
- http://www.microsofttranslator.com/bv.aspx?ref=SERP&br=ro&mkt=en-US&dl=en&lp=RU_EN&a=http%3a%2f%2fworldcompanyjob.com%2fbig-four%2fverbal-reasoning-tests%2fIn PDF document text
- http://oll.libertyfund.org/titles/marshall-principles-of-economics-8th-edIn PDF document text
- http://www.newadvent.org/fathers/120101.htmIn PDF document text
- http://www.newadvent.org/fathers/index.htmlIn PDF document text
- http://www.newadvent.org/fathers/1201.htmIn 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_off000047d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47D7 | 10412 bytes |
SHA-256: 303de25371d3b6f33381a1539041b9339d13948cd57f5b89a3198eedca0907e6 |
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font_01_sfnt_off000068f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68F5 | 7488 bytes |
SHA-256: 2db0c01f218a42d4a921a6c11a03e2eb919bf103bc3e855958d30ddfc3ea3995 |
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