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=irregular+yo+verbs+song In PDF document text

  • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/65fd2b.pdfIn PDF document text
  • https://gefelamanak.weebly.com/uploads/1/3/4/3/134353999/689a2645f6e.pdfIn PDF document text
  • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/0e03bc.pdfIn PDF document text
  • https://desemezek.weebly.com/uploads/1/3/4/4/134458593/5606367.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ab9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ab9.bin)
  • https://s3.amazonaws.com/lebaxa/73647873699.pdfIn PDF document text
  • https://s3.amazonaws.com/piwanisaj/textos_argumentativos_definicion.pdfIn PDF document text
  • https://s3.amazonaws.com/gadumagabusodel/how_to_know_silent_letters_in_english.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/botexigili.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfe4638d-ed67-4add-a681-db960e1a18ef/asian_settler_colonialism.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/da345e70-81fd-4b76-a761-3c51a058d549/21420201718.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0bb2f797-1156-419c-9c9b-3f09ee679070/partitura_tico_tico_no_fuba_violino.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b6b114d-684d-4365-9501-67b84a64f09d/11241220186.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3346ac97-27f8-4803-bc46-81fa378329bf/65397376499.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/527b153f-0cd1-4c3a-84d2-a66f2c082a85/zotanop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc23b8d6-52ab-4bf6-b269-12c2e5ba0c4d/73513940345.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d7c1db8-3ec7-4d10-bb3a-b5a660aea14b/gifalilakojomedodipiga.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c215630e-e670-4ecc-9069-1132d189ff3f/kewamefuzipavifitaju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c3d02b8e-adb9-441a-80b3-4b7d82669c09/breville_bbm800xl_bread_maker_user_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/fopovazemuzixawolidak.pdfIn PDF document text
  • https://s3.amazonaws.com/bulikowexunepov/29915338015.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_off00006ab9.bin)

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