MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links redirects to a known malicious infrastructure at 'ttraff.ru', suggesting a link farm or redirection tactic to obscure the final malicious destination. The document body text, though partially corrupted, indicates a lure for downloading 'encyclopedia of dog breeds pdf free download', aligning with the observed link farm behavior. The ML classifier also strongly flagged this PDF as malicious.
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=encyclopedia+of+dog+breeds+pdf+free+download In PDF document text
- http://files.healthytritowncoalition.org/uploads/1/3/2/8/132814958/kibedejosop_sopubazuxadofe_biteviwidira.pdfIn PDF document text
- http://files.legacyhealingretreat.org/uploads/1/3/0/7/130774962/4123166.pdfIn PDF document text
- http://files.newspark901.org/uploads/1/3/2/8/132814958/2737278.pdfIn PDF document text
- http://files.ywcahealthandfitness.org/uploads/1/3/1/4/131407655/72f0f.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/1/0431/2317/9677/files/govelabuzeriwaxabilox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3041/2450/files/sunatujewomudaxumarorikuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/47282017359.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/83718887378.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1230/9670/files/47092232675.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2975/6066/files/lesenufunexarefesatubi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3780/0086/files/kafik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7960/6176/files/58297166074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/xadezumoxutenidodevelaves.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1024/3230/files/rules_in_naming_inorganic_compounds.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3886/6593/files/automatize_tarefas_maantes_com_python_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tosinumemelijigejidab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1783/7467/files/nitaxirebedakuk.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_off000047c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47C5 | 5616 bytes |
SHA-256: c0bf6b323c96eb55b240897cdf5f893de089df07d5a779c8734b9d7e7d682d15 |
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font_01_sfnt_off00005b09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B09 | 9000 bytes |
SHA-256: 6365ebb739568ab01f2ecf2bb3c24a47efc4632cbb0b5b7ae7220923358375c2 |
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