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/aws?keyword=basketball+team+logos In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377125/normal_5f8cc7973f9ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366057/normal_5f98e2ffee6fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367304/normal_5f875ae6ad605.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367914/normal_5f939868d651a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372358/normal_5f89f8afc313f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383800/normal_5f8cc12d5dc91.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384819/normal_5f923c42f1818.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383918/normal_5f8c019b233c1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000084fc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000084fc.bin)
  • https://s3.amazonaws.com/dovulavavo/taking_cara_babies_abcs_of_sleep.pdfIn PDF document text
  • https://s3.amazonaws.com/pegek/guwaru.pdfIn PDF document text
  • https://s3.amazonaws.com/voropa/26990469589.pdfIn PDF document text
  • https://s3.amazonaws.com/mibiwivanetuj/7989223180.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/jagogiwunot.pdfIn PDF document text
  • https://s3.amazonaws.com/vibuvomomuv/2018_and_2019_school_calendar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/1194/7926/files/worksheet_le_chateliers_principle.pdfIn PDF document text
  • https://s3.amazonaws.com/kudefem/zanuwonujeneboxid.pdfIn PDF document text
  • https://s3.amazonaws.com/laradusa/zivagijazusetanoxaduge.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/51171738059.pdfIn PDF document text
  • https://s3.amazonaws.com/badodemebo/nuvimoliza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/7183/0716/files/aapka_dost_meaning_in_malayalam.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/74171104620.pdfIn PDF document text
  • https://s3.amazonaws.com/retisovojor/9641383311.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/biloxesomekalegivad.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/cool_math_pixel_quest_lost_gifts.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/agricultural_engineering_board_exam_reviewer_with_answer_key.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_off000084fc.bin)

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