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=caida+libre+pdf+unam In PDF document text

  • http://buvisupes.tritonarts.net/uploads/1/3/0/7/130776031/tozikadozizo.pdfIn PDF document text
  • http://files.jerrygarciafoundation.net/uploads/1/3/1/3/131398334/9322465.pdfIn PDF document text
  • http://files.pokebattles.gfx-pro.net/uploads/1/3/1/3/131398054/gixazob-voboxaxorabixij.pdfIn PDF document text
  • https://site-1036939.mozfiles.com/files/1036939/lafavebekimiwuzilipemup.pdfIn PDF document text
  • https://site-1036684.mozfiles.com/files/1036684/61389956897.pdfIn PDF document text
  • https://site-1037219.mozfiles.com/files/1037219/83658110669.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/95527848-c2f6-4bb5-af84-1e6956c87a03/vunoduz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9220f34-de0c-4297-9ad6-25b3417650f1/16174252068.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2c40a57-482f-4ed2-9877-0f352a4a97f2/20264460359.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6229/5714/files/website_administrator_job_description.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5407/9904/files/kutol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/9717605161.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/theeran_songs_starmusiq._fun.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/present_simple_and_present_continuous_tense_worksheet.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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