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://cctraff.ru/strik?keyword=xam+idea+class+10+english+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f86fe7512fd6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365649/normal_5f878083b17b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366000/normal_5f86f52359028.pdfIn PDF document text
  • https://site-1038606.mozfiles.com/files/1038606/98145253173.pdfIn PDF document text
  • https://site-1036783.mozfiles.com/files/1036783/4162209782.pdfIn PDF document text
  • https://site-1042010.mozfiles.com/files/1042010/63588231758.pdfIn PDF document text
  • https://site-1042448.mozfiles.com/files/1042448/napoburoribamofepukak.pdfIn PDF document text
  • https://site-1048474.mozfiles.com/files/1048474/business_case_studies_books.pdfIn PDF document text
  • https://zuxuzesis.weebly.com/uploads/1/3/1/4/131438019/sekinup.pdfIn PDF document text
  • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/tumek.pdfIn PDF document text
  • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/1503947.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005529.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005529.bin)
  • https://cdn.shopify.com/s/files/1/0266/9916/9964/files/the_lightning_is_a_yellow_fork_analysis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/3632/2203/files/28737538807.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8646/2628/files/wentzville_middle_school_map.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/6940/2009/files/levine_protocol_heart_rate.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3489/8332/files/what_is_an_adjective_infinitive_phrase.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a35b2fda-e2d6-4f48-9888-95ef9167446d/mibom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/afb29db1-1e85-493d-b9a6-61aae88ea30e/gizumekodazogibit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a299ad10-0ea6-473c-92df-cb0510ef72f4/26087828161.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/348d2826-e557-455f-87c5-5c620a9dd0af/lenegodefasabejupegek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b442b864-ab35-4719-b84f-51724b150f6d/laponokotafituv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a19968e-4d96-493f-9dad-01f0e51e4edd/tunoxaxuvoturabo.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 extracted file (font_00_sfnt_off00005529.bin)

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