MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru', which is further disguised by a keyword search parameter. The document body, though partially corrupted, contains text related to 'database systems design' and the 'wkhtmltopdf' tool, suggesting a lure to download a specific PDF. The presence of multiple Shopify-hosted links, while some are benign, contributes to the link farm characteristic.
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=database+systems+design+implementation+and+management+9th+edition+pdf+download In PDF document text
- http://files.mrusselldesign.com/uploads/1/3/1/4/131407705/048fbef28c7825.pdfIn PDF document text
- http://kawixobi.rbstudentservices.com/uploads/1/3/1/3/131398140/gigedamoxijudoga.pdfIn PDF document text
- http://mixawef.faithsnotsoaveragelife.com/uploads/1/3/2/8/132814097/razux_sigemanora_gugidafewun_zisuxapa.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/1/0433/8375/0821/files/pakovikuxasuxiduru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3996/4834/files/68274066438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0364/0993/files/bibupimuloxuzatap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6103/5686/files/xivogewop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3293/6605/files/gurazilemozupujevidasol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5049/2323/files/71081350058.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2160/6820/files/bangla_boi_link.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6193/6282/files/calibri_light_font_free_ttf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9540/7269/files/antibiotic_resistance_of_staphylococcus_aureus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1862/2875/files/fiponorajusegarituwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8286/5058/files/48007151983.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3646/7619/files/xubafum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4922/0256/files/pafofodumurajusazabit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1140/0102/files/between_you_and_me_novel.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_off00007dc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DC1 | 5848 bytes |
SHA-256: 8f33cf04f7dd5ffcc28719b8c157b55e41ad0c0af2da57c76533b4be8931c581 |
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font_01_sfnt_off00009190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9190 | 14004 bytes |
SHA-256: 82ad92846aa192e4f9269746fe44a6cc3a3bb6f6cb7c054c8e72557c88404350 |
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