MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was identified as malicious by an ML classifier and ClamAV, and contains critical heuristics indicating it is a fake download lure. The document body and extracted URLs point to suspicious domains, suggesting the PDF is designed to trick users into downloading a second-stage payload. The primary malicious URLs are http://uncpbisdegree.com/download3.php?q=snap-on-wb260-wheel-balancer-manual.pdf and http://uncpbisdegree.com/download4.php?q=snap-on-wb260-wheel-balancer-manual.pdf.
Machine Learning
- Nyx PDF Classifier malicious score 0.9680
Heuristics 5
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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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ClamAV: Pdf.Dropper.Agent-9645776-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-9645776-0
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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=snap-on-wb260-wheel-balancer-manual.pdf
- http://uncpbisdegree.com/download4.php?q=snap-on-wb260-wheel-balancer-manual.pdf
- http://riverside-resort.net/1/srb-manual-of-surgery-ebook.pdf
- http://riverside-resort.net/1/town-ace-van-parts-manual.pdf
- http://riverside-resort.net/1/thailand-monarchy-government-and-economy-people-and-culture.pdf
- http://riverside-resort.net/1/the-sky-people-lords-of-creation-1-sm-stirling.pdf
- http://riverside-resort.net/1/the-strategic-management-of-technology-in-the-chemical-and-petrochemical-industries.pdf
- http://riverside-resort.net/1/the-court-of-france-17891830.pdf
- http://riverside-resort.net/1/the-narrative-of-arthur-gordon-pym-of-nantucket.pdf
- http://riverside-resort.net/1/the-heart-of-betrayal-remnant-chronicles-2-mary-e-pearson.pdf
- http://riverside-resort.net/1/tappan-oven-manual.pdf
- http://riverside-resort.net/1/sram-red-shifter-manual.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409
- https://go.microsoft.com/fwlink/?linkid=868922
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409
- http://go.microsoft.com/fwlink/?LinkID=617297
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00003183.bin33854ceb73d31b3c62885ca4892204378306feb3c96442e89ea1e1aec914fd2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3183 | 10532 bytes |
font_01_sfnt_off000052c0.bindb6340dd599818bc8cc14cc1b545991b14bbf7dcf2caa1a99ed8f1c2ed52f4c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52C0 | 7644 bytes |
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