MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of a link farm designed to improve search engine ranking. One prominent URL, 'https://ttraff.ru/pify?keyword=bjt+applications+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same redirector URL, suggesting it's the primary lure. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=bjt+applications+pdf In PDF document text
- http://files.mrcolliard.com/uploads/1/3/1/4/131438449/witakoba_dafiw_xexewina_fakowizekosoxu.pdfIn PDF document text
- http://files.lonsdale-estate.co.uk/uploads/1/3/1/4/131437770/7476893.pdfIn PDF document text
- http://files.gbsupplyco.com/uploads/1/3/1/4/131482975/pobusazilotatuzere.pdfIn PDF document text
- http://files.jimbruner.com/uploads/1/3/0/7/130776644/wupejerur.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/1/0432/3655/6962/files/ripajojutebowidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3051/8682/files/safasoxirikiko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1746/9080/files/21386205307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6240/2965/files/24017052307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/gozepowatevatekuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1896/0545/files/zoboresumasabiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9075/6259/files/sizobufotakoxewuzepov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/64994231383.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/6466/7810/files/what_s_on_spike_tv_right_now.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2627/6775/files/zuzefisegotikejokaxonet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2153/9240/files/19641036321.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0342/9535/files/3341841612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e78f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE78F | 5180 bytes |
SHA-256: a735294daab83955aea71fd3494dc8385fc817431e9284d7e36c76753466600b |
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font_01_sfnt_off0000f94a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94A | 15788 bytes |
SHA-256: 4cdef892f8a28f32a27391f9858a44a957dc4464aa48dd426c6875b92cf3f432 |
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font_02_sfnt_off00012b3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B3C | 16128 bytes |
SHA-256: 66cc4d6caaef1a4bf39a49522c9c7395c84a542fae143de6602935ce0c2c3434 |
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