MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF contains an embedded URI pointing to 'uncpbisdegree.com/download3.php?q=solutions-www-aisd-net-smurray.pdf', which is highly suspicious. The ML classifier also flagged this PDF as malicious with a high score. The presence of a visual download button further supports the lure tactic. The document body, though garbled, contains references to the suspicious URL, reinforcing the attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9664
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=solutions-www-aisd-net-smurray.pdf In PDF document text
- http://uncpbisdegree.com/download4.php?q=solutions-www-aisd-net-smurray.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-book-of-summer-how-to-stretch-out-those-halcyon-days.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-hidden-reality-parallel-universes-and-deep-laws-of-cosmos-brian-greene.pdfIn PDF document text
- http://uncpbisdegree.com/1/skoog-west-holler-analytical-chemistry-solutions-manual.pdfIn PDF document text
- http://uncpbisdegree.com/1/study-guide-for-ati-comprehensive-predictor.pdfIn PDF document text
- http://uncpbisdegree.com/1/spin-glasses-and-random-fields.pdfIn PDF document text
- http://uncpbisdegree.com/1/senorita-runfio-la.pdfIn PDF document text
- http://uncpbisdegree.com/1/temperature-controls-answers.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-dream-machine-the-untold-history-of-the-notorious-v-22-osprey.pdfIn PDF document text
- http://riverside-resort.net/1/wall-pieces-ceramics-handbooks.pdfIn PDF document text
- http://uncpbisdegree.com/1/the-archive-walter-benjamin.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off00003071.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3071 | 9728 bytes |
SHA-256: a6a504f316fda85a280104cdb30cca129a091112a5e25490585b4d785bc408ba |
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font_01_sfnt_off00004f5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F5C | 6924 bytes |
SHA-256: 443f0e80ccd080d5e7d0856f924a700c37744040f7cf36f6463947f3b4ae994b |
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