MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1204.002 Malicious Link
This PDF document is classified as malicious due to its SEO poisoning technique, which tricks users into downloading a fake file. The document contains multiple links to external URLs, including http://uncpbisdegree.com/download3.php?q=wangsness-electromagnetic-answers-to-problems.pdf, which is identified as a gateway for malicious downloads. The presence of embedded URLs and the ML classifier's high confidence score further support this assessment.
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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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=wangsness-electromagnetic-answers-to-problems.pdf PDF link annotation
- http://uncpbisdegree.com/download4.php?q=wangsness-electromagnetic-answers-to-problems.pdfIn PDF document text
- http://riverside-resort.net/1/wellness-concepts-applications-test-answers.pdfIn PDF document text
- http://uncpbisdegree.com/1/spectroscopic-methods-in-bioinorganic-chemistry.pdfIn PDF document text
- http://riverside-resort.net/1/what-would-google-do-jeff-jarvis.pdfIn PDF document text
- http://riverside-resort.net/1/unit-circle-c-kuta-software.pdfIn PDF document text
- http://riverside-resort.net/1/who-fought-in-the-crusades.pdfIn PDF document text
- http://uncpbisdegree.com/1/standard-costing-questions-and-answers.pdfIn PDF document text
- http://riverside-resort.net/1/visions-of-earth.pdfIn PDF document text
- http://uncpbisdegree.com/1/shopmanu-txt-notepad-shop-manual.pdfIn PDF document text
- http://riverside-resort.net/1/your-love-is-murder-or-the-case-of-the-mangled-pie.pdfIn PDF document text
- http://uncpbisdegree.com/1/signing-naturally-unit-4-mini-dialogue-answers.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_off000031bd.bina1db2837271ba7190ef911016201d91bcd12c0bd9ec45fdd75aa7a5ae4c4c455 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x31BD | 10164 bytes |
font_01_sfnt_off00005202.binbde350b834797d2474db5cfca0e6045187337b29be9fb2339cfb016db56f1f95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5202 | 7220 bytes |
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