MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204.001 Malicious Link
T1566.002 Spearphishing Link
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a browser extension installation lure, suggesting a social engineering tactic to trick the user into clicking the malicious link. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bleed+and+crop+marks+on+pdf, which is likely used to redirect the user to a malicious site.
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.ru/pify?keyword=bleed+and+crop+marks+on+pdf In PDF document text
- http://files.alibilr.com/uploads/1/3/1/3/131398419/938499.pdfIn PDF document text
- http://files.biophysical-ecology.com/uploads/1/3/1/4/131406356/xivut_girusidusowele_finusagon.pdfIn PDF document text
- http://files.drawingonmusic.com/uploads/1/3/1/3/131379312/5905177.pdfIn PDF document text
- http://libila.michiganpreventionassociation.org/uploads/1/3/2/6/132681352/ragusu.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/1/0430/0688/6051/files/88478406067.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4539/4331/files/entrepreneurship_development_and_business_communication.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1624/0807/files/dwarf_fortress_glass.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0496/0676/files/xizaxuliwovegosefarexubud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9095/9766/files/arraydeque_vs_linkedlist.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9137/8854/files/nutumugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6862/8890/files/rojifapizidosefije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5855/1189/files/76673156224.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7170/9092/files/vofupakodojova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/60422497063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0904/7708/files/brahma_purana_in_kannada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0669/7367/files/river_phoenix_last_photo.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_off00006c77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C77 | 5416 bytes |
SHA-256: d5084425c3cbe376d77743816074d664acc5fc0091b90f8fc35defc23c54c83b |
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font_01_sfnt_off00007ec6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC6 | 9968 bytes |
SHA-256: 7c5455557f632675ff37a7e45f28eea865539f1e4fc9a87e3e2ec17c00d6293f |
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