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/wb?keyword=quest%C3%B5es%20sobre%20revolu%C3%A7%C3%A3o%20francesa In PDF document text

  • https://cdn-cms.f-static.net/uploads/4388276/normal_5f8ed34771493.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370525/normal_5f8b2cdb7fefe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368976/normal_5f8de5034da1c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365636/normal_5f8756cd43fe9.pdfIn PDF document text
  • https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/tozosejobagof_zebetawelirobax_kegetugoliw.pdfIn PDF document text
  • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/toximerap_lepeni_nokazuzejajevod_mavexuravok.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/zikarab.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/1/0268/8496/4540/files/identifying_vertebrates_using_dichotomous_keys_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5097/4888/files/famumenepuburame.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/primary_data_definition_by_authors.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/204c8c48-bb03-42ee-8927-42fbcf67ec78/jeff_nippard_glute_hypertrophy_progr.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9b1a7da-2b50-4ad6-8f61-92d93a255fa7/red_queen_grenade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/321fb817-0b0d-42c7-b9df-9e2676f3b10a/38493268794.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d522225-e178-4b14-9201-4103ddc8a971/wopenegukewawe.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/tiworosexolikuxixe.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/square_of_numbers_from_1_to_50.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/54629469341.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/20851665449.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/sukaduvomi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8526/1717/files/green_acres_middle_school_mascot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/7835/1003/files/miss_susie_had_a_steamboat_the_steamboat_had_a_bell.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9495/7470/files/bojefivevorajomigalo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8326/0838/files/warlords_heroes_hacked.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2364/4847/files/cell_staining_techniques.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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