Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF 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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF 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.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The 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.
• Embedded URL info EMBEDDED_URL
  One 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://ggtraff.ru/strik?keyword=position+of+adjectives+worksheets+for+class+4 In PDF document text

  • http://files.zwdirect.com/uploads/1/3/1/4/131437601/vibew.pdfIn PDF document text
  • http://files.happy-wife-spirit-life.com/uploads/1/3/2/6/132681281/vimesa_vonowuvibetevib.pdfIn PDF document text
  • http://files.cooperee.com/uploads/1/3/2/6/132681028/divoralexuzeno.pdfIn PDF document text
  • http://xiwowi.erikalfischerkeller.com/uploads/1/3/0/9/130969140/7273408.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://uploads.strikinglycdn.com/files/28052378-7437-40d7-b4c0-f121d03226c1/kujevokopovew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b6573b9-665a-49e8-a2f8-e484a12f5912/1036080314.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/74de1ae4-46c8-41e8-b79d-c3a06212306d/wutudipeba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/waxajuzitemetomi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/avast_cleanup_auto_renewal.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/42114837570.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/ncaa_soccer_championship_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/4388/9562/files/ruvodugijiju.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

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