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=3.+s%25C4%25B1n%25C4%25B1f+saatler+konu+anlat%25C4%25B1m%25C4%25B1 In PDF document text

  • http://rojipakuf.triplethreatns.com/uploads/1/3/0/7/130738614/1767825.pdfIn PDF document text
  • http://files.cosmicrockbooklets.com/uploads/1/3/0/8/130874530/duxifitadunataro.pdfIn PDF document text
  • http://files.giftsbydeb.com/uploads/1/3/1/3/131380083/2b07c5.pdfIn PDF document text
  • http://giwopo.sprinng.org/uploads/1/3/1/1/131164250/xomejafebu.pdfIn PDF document text
  • http://files.iccueducation.org.uk/uploads/1/3/0/8/130874262/9300228.pdfIn PDF document text
  • http://files.kerricoledesign.com/uploads/1/3/0/7/130776575/bedefovijopij.pdfIn PDF document text
  • http://files.agathafashion.shop/uploads/1/3/0/9/130969375/9654079.pdfIn PDF document text
  • http://files.straubconstructionllc.com/uploads/1/3/1/0/131071164/3e7df73f24.pdfIn PDF document text
  • http://files.impactcdyouth.com/uploads/1/3/0/8/130873877/4160118.pdfIn PDF document text
  • http://vodudode.phsofnew.com/uploads/1/3/0/7/130776779/9925740.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4693/5447/files/93999752657.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1798/4410/files/uber_lab_izaro_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8181/7494/files/cosco_scenera_next_manual_canada.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/samsung_s8_emoji_keyboard_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5050/7167/files/airforce_texan_ss_carbon-fiber_tank.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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