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/pify?keyword=staar+english+2+study+guide In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374537/normal_5f9361a902757.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382966/normal_5f8f7425e7f29.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391896/normal_5f90af37aa180.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374517/normal_5f8cb1724dce3.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/3718456.pdfIn PDF document text
  • https://repotadidutu.weebly.com/uploads/1/3/4/3/134310826/aa2ca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369163/normal_5f87bfc47dc75.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366623/normal_5f9010bc8ebf0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420939/normal_5f992bee570d3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366964/normal_5f8b5188958d8.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000673b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000673b.bin)
  • https://cdn.shopify.com/s/files/1/0502/7010/9890/files/picsart_pro_revdl_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0502/0830/files/20329225529.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3491/0101/files/kavaxexenotimikexap.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/diferencia_entre_acromegalia_y_gigantismo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6993/8096/files/educational_psychology_santrock.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9843/1395/files/long_and_synthetic_division_review_worksheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/5188/1910/files/iadc_drilling_manual_scribd.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2578/3190/files/45541538482.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/community_helpers_and_their_tools_matching_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/luraxerasiwirogiguvaj.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_off0000673b.bin)

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