MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=surgical+treatment+of+cataract+pdf', suggesting a lure to a malicious site disguised as a medical document. The presence of multiple PDF links and a malicious redirector indicates a link farm or redirection-based attack. No scripts were extracted from this sample.
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=surgical+treatment+of+cataract+pdf In PDF document text
- http://files.nationalathletic.net/uploads/1/3/1/3/131383771/fanibuzariju.pdfIn PDF document text
- http://files.visionsworkshops.net/uploads/1/3/1/4/131453855/c515dd3407f9.pdfIn PDF document text
- http://files.balikowskidentallab.com/uploads/1/3/0/7/130739528/3a1023fb243b5.pdfIn PDF document text
- http://files.cobusinessadvisors.com/uploads/1/3/2/8/132816096/5578153.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/1/0434/6878/3766/files/95118350170.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0760/5923/files/c_node_class.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1344/7584/files/gefopulepeledu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6686/0455/files/93325858062.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4864/0418/files/44583228764.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6640/8603/files/36954033464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6613/7507/files/com_facebook_appmanager.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4217/7181/files/campbell_and_reece_biology_9th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4462/5822/files/43345587141.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/wixenasunagodepena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7963/1001/files/tebuduniv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6057/5908/files/central_african_republic_conflict.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/arithmetic_and_geometric_sequences_and_series_worksheet.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_off00006612.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6612 | 5284 bytes |
SHA-256: 0336b2023b62f7c5a33b3dab04c58f78e5fe2c17bc2943f6f336c946d0e9ac29 |
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font_01_sfnt_off000077e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E5 | 10036 bytes |
SHA-256: 88de2384605fb9dc931f27b3123116fdbc2407b46a4bdd594c6cb46655c4fa68 |
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font_02_sfnt_off00009a4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A4E | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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