Malicious PDF — malware analysis report

Heuristics 4

• 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://ggtraff.ru/strik?keyword=fidic+contracts+guide+1st+edition+2020 In PDF document text

  • http://betegaxo.buckhorncampco.org/uploads/1/3/1/6/131636655/337a123a224462a.pdfIn PDF document text
  • http://zaratujem.allisonmariereyes.com/uploads/1/3/1/4/131453723/wakagijelelot.pdfIn PDF document text
  • https://site-1036686.mozfiles.com/files/1036686/5423604808.pdfIn PDF document text
  • https://site-1037160.mozfiles.com/files/1037160/43466591634.pdfIn PDF document text
  • https://site-1036724.mozfiles.com/files/1036724/mopenusujoropuzewojazad.pdfIn PDF document text
  • https://site-1042492.mozfiles.com/files/1042492/diretuxufulasuj.pdfIn PDF document text
  • https://site-1037266.mozfiles.com/files/1037266/28952698935.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/01c314dc-1914-4602-9bec-feca471fdb71/subobina.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f80be877-c25b-4cbb-ade2-f539789c25be/13323060671.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/85c81c32-f132-455c-8743-aa18a47d4c3b/67512786343.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1b76d51-38f4-4960-a3df-24c7fd439a1c/vegiwotejakazujovibijusim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb23bafd-d69c-4f9d-89c1-3a7bab9ae464/fewogaduv.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5448/2079/files/megaman_x5_boss_weaknesses.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/2727/9267/files/university_of_minnesota_chemistry_courses.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/first_person_shooter_zombie_games_unblocked.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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