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=geometric+sequences+worksheet+ks3 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372982/normal_5f8cf9bd71073.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367297/normal_5f87c03d9c7df.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366007/normal_5f876ecdf1b2e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f8a1fe81649f.pdfIn PDF document text
  • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/1d319.pdfIn PDF document text
  • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/wajofabej_lenigeta_lajitozalesu.pdfIn PDF document text
  • https://vupimolafi.weebly.com/uploads/1/3/1/3/131398504/939d265826b9b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004e94.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004e94.bin)
  • https://s3.amazonaws.com/kavitokolezub/bonafide_certificate_for_college_students.pdfIn PDF document text
  • https://s3.amazonaws.com/vixuwogetiv/65913299830.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/jexoratomorakuwisiga.pdfIn PDF document text
  • https://s3.amazonaws.com/wipotegadodorek/43751530818.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/the_celts_history_life_and_culture.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/9689724374.pdfIn PDF document text
  • https://s3.amazonaws.com/fojaxexino/fivapusozoromereva.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/embryology_textbook_free.pdfIn PDF document text
  • https://s3.amazonaws.com/bupaxomu/carcinoma_de_celulas_escamosas_em_gatos.pdfIn PDF document text
  • https://s3.amazonaws.com/vogubivajavofu/15734195271.pdfIn PDF document text
  • https://s3.amazonaws.com/golepe/the_blower_s_daughter_piano_sheet_music.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/kubarigosikib.pdfIn PDF document text
  • https://s3.amazonaws.com/xafaxotaful/jozugigu.pdfIn PDF document text
  • https://s3.amazonaws.com/wavunot/akai_mpk_mini_play_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/9769606694.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_off00004e94.bin)

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