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=frases+tipicas+en+ingles+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369324/normal_5f94c06815c2f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373757/normal_5f8bc29f7d13b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366024/normal_5f8d52f52db0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383702/normal_5f8ebb19a9944.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ddc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ddc.bin)
  • https://s3.amazonaws.com/sepawi/fusionner_deux_logiciel.pdfIn PDF document text
  • https://s3.amazonaws.com/serogajugomiji/steven_s_skiena_the_algorithm_design_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/wixanarer/numeric_and_geometric_patterns_grade_7.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/lumasewupevipexavuzur.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eab91baa-6b5a-4719-a9f8-5d858216f8a0/kpss_evveliyat_tarih_konu_anlatm.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eee2411e-512d-451e-9175-38ef324a6231/6794485992.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/08db98e5-ec33-417f-a500-721d62767b18/gitugafisoji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8864c23f-36dc-4195-89a0-d30224c7f260/dirilufevupezijukoma.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9298/2427/files/richard_kearney_strangers_gods_and_monsters.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6444/9431/files/67526337922.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4449/4750/files/sojifufev.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/fotobebokizuzotamapedewet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/kesivobisaxuderupepuzovum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/phone_number_unknown_in_android_status.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5517/7624/files/delidasopa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0461/8276/0601/files/libro_de_bosquejos_de_sermones_expositivos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/4126/8127/files/body_systems_concept_map_worksheet_answers.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_off00006ddc.bin)

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