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=making+bar+graph+worksheet+pdf In PDF document text

  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/7d7b6617ab8.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdfIn PDF document text
  • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/efb45fb9b.pdfIn PDF document text
  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
  • https://site-1036811.mozfiles.com/files/1036811/18892683438.pdfIn PDF document text
  • https://site-1048529.mozfiles.com/files/1048529/38621455665.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f871117f4139.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f87085758022.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365636/normal_5f86f514f4194.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366365/normal_5f870ff07b96e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366031/normal_5f86fae5500b0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/6307/4712/files/word_connect_apk_uptodown.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3afdbc8-7e9f-4859-8201-b0b2fcabb0af/rezefegulonuwomif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc972490-8da2-4026-86fc-50acfaf5ce96/54268499257.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79905cd9-ceed-4f70-97c8-077b4cb0314f/84421255300.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0647/5426/files/sony_walkman_mp3_software.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1766/1339/files/the_point_resort_lake_placid_ny.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9467/5108/files/nolijowagimonefitilefig.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 PDF document text

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