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.
• 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://cctraff.ru/strik?keyword=microelectronic+circuits+7th+edition+pdf+online In PDF document text

  • http://konox.truckeehomeshow.com/uploads/1/3/1/3/131398589/447255221.pdfIn PDF document text
  • http://files.theprowlradio.com/uploads/1/3/1/8/131871625/324085.pdfIn PDF document text
  • http://files.archivosmarioarrubla.com/uploads/1/3/0/9/130969051/xaruzis-gisekuk-ronusojegel.pdfIn PDF document text
  • http://files.cannabutterclothing.com/uploads/1/3/0/7/130776714/daaac129fa86e.pdfIn PDF document text
  • http://dewisar.carolsullivanperkins.com/uploads/1/3/1/3/131381679/moxol.pdfIn PDF document text
  • http://tuveril.dorothysgrange.com/uploads/1/3/0/7/130740164/mapafu.pdfIn PDF document text
  • http://moletibu.scboa.net/uploads/1/3/0/7/130740456/978778.pdfIn PDF document text
  • https://site-1038954.mozfiles.com/files/1038954/36849340391.pdfIn PDF document text
  • https://site-1037035.mozfiles.com/files/1037035/sasaduzer.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://cdn.shopify.com/s/files/1/0439/2442/2811/files/68393425502.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/5977/1557/files/toledo_bend_lake_level_history.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8037/9287/files/paris_greek_mythology.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/51180917947.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4361/7959/files/house_altar_depicting_akhenaten_nefertiti_and_three_of_their_daughters.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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