MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains a lure promising a free download of 'Biopsychology 10th edition pdf free download'. It includes a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also contains a large number of external links, suggesting a link farm for SEO manipulation, as flagged by PDF_SEO_LINK_FARM. The SE_BROWSER_INSTALL_LURE heuristic indicates the document likely prompts the user to install a browser extension or update, a common tactic for malware delivery or credential theft.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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 https://ttraff.cc/pify?keyword=biopsychology+10th+edition+pdf+free+download In PDF document text
- http://files.rbsm.me.uk/uploads/1/3/0/7/130776072/fapomomewa_dagavu_rolixinazusos_ziresono.pdfIn PDF document text
- http://files.tabernaclebaptistchurchofhope.org/uploads/1/3/2/6/132681443/4732471.pdfIn PDF document text
- http://files.absolutelyradiantphotography.com/uploads/1/3/0/8/130874043/1466827.pdfIn PDF document text
- http://files.hengjieai.com/uploads/1/3/0/8/130874457/xusoliva.pdfIn PDF document text
- http://files.pulsarevent.com/uploads/1/3/0/8/130874134/9214878.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/faxulonuxababeluzizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5734/7741/files/parowekudapijemip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7811/3697/files/vaxigenigorogukomigi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5969/8077/files/gixiranegawapek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1329/9620/files/34801983166.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9959/4656/files/29587736681.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4352/0666/files/88030490322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/0297/3595/files/98909997501.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6427/7657/files/tudodiwofepo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9726/0192/files/boiler_control_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0346/9221/files/jewelanefolajerovubikuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8518/5702/files/rheem_furnace_troubleshooting.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009db3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DB3 | 5856 bytes |
SHA-256: ae14a701b6933850e2b96c2d14002fd99b392d456358cd6f0f3e2761e77bc156 |
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font_01_sfnt_off0000b1a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1A8 | 11168 bytes |
SHA-256: 71f26e97d53513794349f511adc1537e40007e48215f790b130a3742079b3fc0 |
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