MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many of which point to other PDF files, indicating a link farm likely used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the distribution of numerous external links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.5237
Heuristics 4
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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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://xajibur.ru/strik?utm_term=what+air+fuel+ratio+at+idle PDF link annotation
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- https://cdn.sqhk.co/rujiwujik/jejgT8g/masuretedefuxefibalefigo.pdfIn PDF document text
- https://cdn.sqhk.co/pigajifaw/hbBgihc/events_near_here.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6244bea-2a4a-40e4-807e-a5fdf3a7363f/27892090500.pdfIn PDF document text
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- http://rujugojokukasav.rf.gd/mary_balogh_libros.pdfIn PDF document text
- https://ebed6276-6372-4ddf-adad-9a0fa504b99f.filesusr.com/ugd/805d2a_2350c05af0f04299b81436f160718e6e.pdf?index=trueIn PDF document text
- http://gogadotonirad.rf.gd/mipezop.pdfIn PDF document text
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- https://uploads.strikinglycdn.com/files/47c4df02-8f4f-4008-aceb-7b121fe1fb71/pinijidosiranojexo.pdfIn PDF document text
- https://ba739632-11db-41f7-a023-683a20e55d36.filesusr.com/ugd/99835b_9786c12e6b1a49d883616d47c4fcab1e.pdf?index=trueIn PDF document text
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