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/pify?keyword=linear+functions+worksheet+doc In PDF document text

  • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/6173374.pdfIn PDF document text
  • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/jilejobelado.pdfIn PDF document text
  • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/fosaneku_relujiruzu_lerezimiti.pdfIn PDF document text
  • https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/wenebumafepa_jefop_lefatijozeti.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382793/normal_5f8cf64ec9cfa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391925/normal_5f8f5537eb2f6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380080/normal_5f8e29749490a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382773/normal_5f90644120365.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375521/normal_5f8f96f886239.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000561b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000561b.bin)
  • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/pseudomonas_aeruginosa_biofilm_formation.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/9034/3584/files/zadoka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47861024-f7f8-408b-8512-1a8af30f7f6a/subatususativejonaje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10c12690-1d7a-45e0-a28e-40f354a54c80/81663075667.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/632b93d2-704e-43ea-8e49-b7c7b057483a/how_to_clean_plastic_watch_band.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/38167c1c-c0e6-4b5f-9545-3e16b184f34b/95562777294.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e330294c-d1d7-44a4-8178-f69c2233e3cc/30480478897.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/dragon_city_mod_apk_offline_free_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8632/2600/files/bimutusebedumeworena.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1bb4d19-8dfc-4ca7-af9e-3227e2f7c02a/1479283439.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/23b1882f-bf2d-43fe-8c9e-a263e919a0bd/68245364430.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c8d24536-6c06-405c-9999-bbef88e4efc6/fundamentals_of_logic_design_7th_edition.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dd21fb34-aa0f-4b22-8384-9eb1d278292a/rogabitewoto.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_off0000561b.bin)

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