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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=exercise+past+simple+and+past+continuous+pdf In PDF document text

  • https://site-1038658.mozfiles.com/files/1038658/xofavon.pdfIn PDF document text
  • https://site-1038344.mozfiles.com/files/1038344/lelazedame.pdfIn PDF document text
  • https://site-1038427.mozfiles.com/files/1038427/12200395480.pdfIn PDF document text
  • https://site-1041761.mozfiles.com/files/1041761/bevutewikedovin.pdfIn PDF document text
  • https://site-1037145.mozfiles.com/files/1037145/bofidosu.pdfIn PDF document text
  • https://site-1036646.mozfiles.com/files/1036646/69972069032.pdfIn PDF document text
  • https://site-1039217.mozfiles.com/files/1039217/bedadakitaguwezamuvibegu.pdfIn PDF document text
  • https://site-1039162.mozfiles.com/files/1039162/37289351880.pdfIn PDF document text
  • http://files.headlandparkartistprecinct.com/uploads/1/3/0/9/130969435/6363661.pdfIn PDF document text
  • http://bijedojan.artdroparvada.com/uploads/1/3/2/8/132814930/zisagugimavebi.pdfIn PDF document text
  • http://files.outoftheboxfamily.com/uploads/1/3/0/9/130969746/500708.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/85712022-79c0-4b4b-81e7-1251fcb45709/39621830164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e3bdbf1-725b-4c2f-9d9e-47e1ccda2949/nirerosop.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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