MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file was flagged by an ML classifier as malicious. It contains embedded URLs pointing to a suspicious domain, 'uncpbisdegree.com', which are likely intended to deliver a secondary payload. The document body and heuristics suggest a social engineering lure related to university admissions, aiming to trick the user into downloading a file.
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=vu-university-admission.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=vu-university-admission.pdfIn PDF document text
- http://www.vu.edu.pk/In PDF document text
- https://www.vu.edu.au/study-at-vu/how-to-apply/special-admission-programsIn PDF document text
- https://www.vu.edu.au/In PDF document text
- http://www.vu.edu.pk/apply/AdmissionEligibility.aspxIn PDF document text
- https://www.vupune.ac.in/In PDF document text
- http://www.viterbo.edu/admission/apply-onlineIn PDF document text
- http://ecircular.vidyasagar.ac.in/AdmissionIn PDF document text
- http://www.vu786.com/downloads-vu-past-papersIn PDF document text
- http://www.vubs.ch/In PDF document text
- http://jnvuonline.in/In PDF document text
- http://vu.edu.bd/In PDF document text
- http://www.vceandcareers.com.au/In PDF document text
- http://www.emgo.nl/home/In PDF document text
- http://handbook.vu.edu.pk/In PDF document text
- https://www.owu.edu/In PDF document text
- http://www.viterbo.edu/academics/majorsIn PDF document text
- http://riverside-resort.net/1/work-energy-simple-machines-test-answer-key.pdfIn PDF document text
- http://uncpbisdegree.com/1/tank-girl-comic-book-online.pdfIn PDF document text
- http://uncpbisdegree.com/1/signals-and-systems-3rd-revised-edition.pdfIn PDF document text
- http://uncpbisdegree.com/1/textbook-of-preventive-and-social-medicine-by-k-park-20th-edition.pdfIn PDF document text
- http://uncpbisdegree.com/1/springboard-level-3-teacher-edition.pdfIn PDF document text
- http://uncpbisdegree.com/1/social-networking-articles.pdfIn PDF document text
- http://uncpbisdegree.com/1/study-guide-reconstruction-and-the-new-south.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-interlopers-test.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-adventures-of-penny-the-rhode-island-red.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-animal-kingdom-vol-9-arranged-in-conformity-with-its-organization.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/VU_University_AmsterdamIn PDF document text
- https://www.vu.lt/en/studiesIn PDF document text
- https://www.vu.nl/enIn PDF document text
- https://www.vu.nl/marketingIn PDF document text
- https://www.valpo.edu/student-financial-services/In PDF document text
- http://www.bc.edu/admission/undergrad.htmlIn PDF document text
- http://svuonline.org/In PDF document text
- http://go.microsoft.com/fwlink/?LinkID=617350In 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_off00004683.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4683 | 10292 bytes |
SHA-256: 03f21563b07439c9cd570b6300902ed0caec340d202ddd8af308e84c9a3b2070 |
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font_01_sfnt_off00006745.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6745 | 6852 bytes |
SHA-256: cc3b0792eac561f1fba4888049f3a8f7eab728dd3660610cbc915239441afd15 |
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