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/123?keyword=learn+english+pdf+file In PDF document text

  • https://cdn-cms.f-static.net/uploads/4416128/normal_5f963627771e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369152/normal_5f87a98a79053.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371004/normal_5f8937436b0db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402960/normal_5f938626a9ce1.pdfIn PDF document text
  • https://tazejoga.weebly.com/uploads/1/3/1/3/131383942/9570453.pdfIn PDF document text
  • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/tigugek.pdfIn PDF document text
  • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/3863683.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000547f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000547f.bin)
  • https://uploads.strikinglycdn.com/files/ff90278c-f6ca-4a65-9722-fa029f5f57e4/30340053550.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb398eea-76b4-43ce-8450-65a1d2a0a212/dragon_s_dogma_dark_arisen_duplication_glitch.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e04aac1-9477-4fae-a513-f967032b10a4/pivevuxaxinu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c0cf6baa-ea33-434d-8f9e-072ed7df851f/microsoft_word_2013_book.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5909ef13-9079-4ace-ab4e-3af6f4566a80/zeririwulosepos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/8431/4274/files/4838936243.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6200/8240/files/94474327065.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/1708/3802/files/92314233110.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48cdea0d-162b-413c-8413-76ae9c5ef124/77707733824.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0650bea4-6da0-4d19-b2f3-55e56d0bbc84/best_amazon_echo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f5a500d-5aca-4e0e-8f88-df7dd633bbd5/13333518577.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c191f661-9456-4ab1-8ee2-d01f7c7345b0/vebesubenalemizuwixere.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/737c7435-663d-4a26-b579-c11042780ae1/radavun.pdfIn PDF document text
  • https://s3.amazonaws.com/badodemebo/convert_cdf_to_excel.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/amulet_book_2_full_book.pdfIn PDF document text
  • https://s3.amazonaws.com/jumedemimo/70677155238.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/wipuxigixo.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_off0000547f.bin)

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