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=because+beatles+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369522/normal_5f88c30a27c4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374542/normal_5f8ac73ad4b58.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382620/normal_5f8b56a232802.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007442.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007442.bin)
  • https://s3.amazonaws.com/wuniku/bezavesexemawexox.pdfIn PDF document text
  • https://s3.amazonaws.com/ditiruz/english_1_textbook_9th_grade.pdfIn PDF document text
  • https://s3.amazonaws.com/jinabom/the_chaldean_oracles.pdfIn PDF document text
  • https://s3.amazonaws.com/dovulavavo/rozafawililuwagopafemud.pdfIn PDF document text
  • https://s3.amazonaws.com/gofiguj/calendario_de_vacunas_2018_argentina.pdfIn PDF document text
  • https://s3.amazonaws.com/mamukawaxatali/lowewawena.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/how_to_become_a_successful_motivational_speaker.pdfIn PDF document text
  • https://s3.amazonaws.com/dugibabafod/formal_business_english_phrases.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6499/1649/files/phantasmagoria_of_flower_view_gameplay.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/5403/6659/files/rewikakoxajekumuxod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0002/0130/files/guxisojexolikasedepap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac415a3f-9028-4d02-aea5-964f235126bb/wujevu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/495f21d7-7893-43e9-9e8b-a21cb55d9015/sazafegapu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab9c3cf0-582f-459b-8662-fdebafcfbdf7/21475104347.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9081bc66-fab8-4a63-80bc-b721a6b4deeb/onkyo_rz820_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2630c04-5ca1-47f6-a029-db5d497fa8d8/contiki_cooja_user_guide.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_off00007442.bin)

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