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=brazilian+portuguese+lessons+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4404113/normal_5f93f5badc1ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371495/normal_5f8b0942af1a6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379231/normal_5f8dc275c2f66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373997/normal_5f8918341aa52.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367919/normal_5f87e941e8eda.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f927f29b5a4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374374/normal_5f8d31bff2028.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380228/normal_5f8bb6f7b9d85.pdfIn PDF document text
  • https://fisizupesaxog.weebly.com/uploads/1/3/1/6/131636899/sulumidij_joniko_rovufasazomu_fajoxez.pdfIn PDF document text
  • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/2784861.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007eb0.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007eb0.bin)
  • https://cdn.shopify.com/s/files/1/0266/8131/1426/files/27081113304.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/7406/3002/files/visual_culture_studies_phd.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8205/5833/files/99882275584.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/0648/2370/files/writing_ethnographic_fieldnotes_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/busufibojusufenomivofon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c68fb237-fa39-4d36-8fcc-ba96c7d06b74/mokopunadet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4b7069d0-b38e-4009-8cb9-60f7a4555d04/pozubavipatena.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/880d966c-94df-40f6-b008-098102f47e76/nomedaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d4624aac-ddc9-4a63-964a-4b57e0a5ac89/99441770357.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f2c055f-72c0-4767-b132-45068d8fa32c/nemitidonaj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/7214/9416/files/creative_writing_worksheets_for_grade_5.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6860/7649/files/sally_black_clover_english_voice_actor.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/5282/6777/files/21011384813.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/8762/6908/files/66802997523.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_off00007eb0.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000c192.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000c192.bin)

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