MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The ML classifier flagged this PDF with high confidence. The document body and extracted URLs indicate a lure to download a file disguised as academic material. The presence of multiple similar URLs suggests a distribution infrastructure. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the social engineering aspect of this attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.8788
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=writing-clearly-answer-unit-4.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=writing-clearly-answer-unit-4.pdfIn PDF document text
- http://wwhome.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://zorama.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://pkdrei.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://aukass.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://hihugo.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://journaldetoday.com/reads-online/writing-clearly-answer-unit-4.pdfIn PDF document text
- http://losangelesfirstszechuanwok.com/reads-online/writing-clearly-answer-unit-4.pdfIn PDF document text
- http://www.todochistes.tv/reads-online/writing-clearly-answer-unit-4.pdfIn PDF document text
- http://www.lairdcenter.tv/reads-online/writing-clearly-answer-unit-4.pdfIn PDF document text
- http://fogcom.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://dachwg.de/writing/clearly/writing_clearly_answer_unit_4.pdfIn PDF document text
- http://riverside-resort.net/1/the-enemies-of-individuality-and-mental-freedom-a-lecture-on-why-the-church-hates-thinkers.pdfIn PDF document text
- http://riverside-resort.net/1/the-mouse-that-roared-disney-and-the-end-of-innocence.pdfIn PDF document text
- http://riverside-resort.net/1/signals-systems-and-transforms-edition-solution-manual.pdfIn PDF document text
- http://riverside-resort.net/1/special-operations-singapore-1941-42.pdfIn PDF document text
- http://riverside-resort.net/1/the-gesta-guillelmi-of-william-of-poitiers.pdfIn PDF document text
- http://riverside-resort.net/1/shanling-scd-t300-cd-players-owners-manual.pdfIn PDF document text
- http://riverside-resort.net/1/tropical-climatology-an-introduction-to-the-climates-of-the-low-latitudes.pdfIn PDF document text
- http://riverside-resort.net/1/sony-vgn-nr185-laptops-owners-manual.pdfIn PDF document text
- http://riverside-resort.net/1/stage-iii.pdfIn PDF document text
- http://riverside-resort.net/1/student-solution-manual-for-introductory-chemistry.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://shiergande.pbworks.com/w/page/59451465/AnswerIn 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_off00007415.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7415 | 13584 bytes |
SHA-256: d8d041630d7c639daf8d0e89b0c5cb6d14e46bf3b1848713c359d10945fe10d2 |
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font_01_sfnt_off00009d7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D7B | 8924 bytes |
SHA-256: 4693b95bfda71290026c1525ef6ec9c7d7405da2385074ba29c64bb8eff38475 |
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