MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file is identified as malicious by an ML classifier and contains heuristics indicating it is a fake download lure using SEO poisoning. The document body and embedded URLs point to suspicious domains, specifically 'uncpbisdegree.com', which is likely hosting a secondary payload disguised as an exam timetable. The presence of multiple suspicious URLs suggests an attempt to redirect the user to a malicious download site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9135
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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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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External URI info PDF_URIPDF contains an external URL action
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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=t2-nated-exam-timetable.pdf PDF link annotation
- http://uncpbisdegree.com/download4.php?q=t2-nated-exam-timetable.pdfIn PDF document text
- http://riverside-resort.net/1/solutions-to-derivatives.pdfIn PDF document text
- http://riverside-resort.net/1/solutions-worksheet-1-molarity-complete-the-table-answers.pdfIn PDF document text
- http://riverside-resort.net/1/tubular-car-frame-design.pdfIn PDF document text
- http://riverside-resort.net/1/the-girl-under-the-olive-tree.pdfIn PDF document text
- http://riverside-resort.net/1/the-untouchable.pdfIn PDF document text
- http://riverside-resort.net/1/tema-diplome-juridik-te-drejtat-e-njeriut.pdfIn PDF document text
- http://riverside-resort.net/1/suzuki-dl1000-k2.pdfIn PDF document text
- http://riverside-resort.net/1/the-monastic-life-pathway-of-the-buddhist-monk.pdfIn PDF document text
- http://riverside-resort.net/1/troy-bilt-tb575ss-parts-diagram.pdfIn PDF document text
- http://riverside-resort.net/1/the-grapple-manual-heroes-and-villains-from-the-golden-age-of-world-wrestling.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_off00003362.bind07719f8fc8864ed05ffdfe6d93e4a53d703b3cfcbe702041338fa5c6b5edfd6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3362 | 10148 bytes |
font_01_sfnt_off000053b2.bin7b30ec687890fae2efb07f30f995f22d819fa39cd741346478839be2ced8dfab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53B2 | 6780 bytes |
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