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://cctraff.ru/strik?keyword=brs+physiology+8th+edition+free+download In PDF document text

  • https://site-1043055.mozfiles.com/files/1043055/73578847471.pdfIn PDF document text
  • https://site-1039513.mozfiles.com/files/1039513/guzubuzisifafujukaw.pdfIn PDF document text
  • https://site-1037245.mozfiles.com/files/1037245/22409125416.pdfIn PDF document text
  • https://site-1042549.mozfiles.com/files/1042549/43889809607.pdfIn PDF document text
  • https://site-1038971.mozfiles.com/files/1038971/zigoledakosekumuv.pdfIn PDF document text
  • http://files.goldengloryauthentics.com/uploads/1/3/1/4/131438541/sisowadig.pdfIn PDF document text
  • http://files.gyrobot.co.uk/uploads/1/3/2/6/132681910/nowosa.pdfIn PDF document text
  • http://files.tbstglassboro.com/uploads/1/3/1/6/131606348/vemanoxafotej_tafunizeleb_nojutotazoxej.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/1/0460/6948/1636/files/80794205538.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1630/6344/files/mhw_decoration_table_spreadsheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8472/5406/files/loxiramadatetasapapo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0673/2699/files/mackie_onyx_24.4_review.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0460/1747/8815/files/frontier.net_home_page.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8396/5628/files/minecraft_magic_launcher_1.5_2_download.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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