MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm. One prominent link redirects through 'ttraff.ru', a known malicious redirector, and is presented as a lure for a 'free download'. The ML classifier strongly flagged this PDF as malicious, and the heuristics indicate a social-engineering lure to install a browser extension or update, which is a common method for credential theft or malware installation. The document body, though heavily obfuscated, contains the malicious redirector URL.
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=kakad+aarti+lyrics+in+kannada+pdf In PDF document text
- http://files.bishopgumbleton.com/uploads/1/3/1/3/131379371/tokasinipegog.pdfIn PDF document text
- http://files.flbutterflyeffectboutique.com/uploads/1/3/1/3/131383943/5370686.pdfIn PDF document text
- http://files.antoniodavidsinopoli.com/uploads/1/3/0/8/130873907/4090271.pdfIn PDF document text
- http://files.hannirosemindfulness.co.uk/uploads/1/3/2/3/132302987/1033280.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/6156/5850/files/hp_officejet_pro_8600_plus_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1238/2117/files/61405325207.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6327/1833/files/84824759557.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6108/3301/files/96754416923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3332/9817/files/16533385068.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0978/5499/files/6157549914.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2351/5294/files/femenajegufakax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4418/3974/files/75886225974.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4618/3847/files/37110242845.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4790/3644/files/goxevororaxelinuriwareta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0279/7986/files/rikogonuxabefijatam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1077/6478/files/80881934602.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000627d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x627D | 4844 bytes |
SHA-256: a4471a857590846fb9334605694f87a40470536624952f936833d254a6c9b27b |
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font_01_sfnt_off000072ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72FF | 10420 bytes |
SHA-256: bc7f1d4854f1d8bef61481f8073f83bff85f2771cc010abc49af21299504680f |
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font_02_sfnt_off0000969f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x969F | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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