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=using+mental+math+to+add+reteaching+2-3 In PDF document text

  • https://site-1037886.mozfiles.com/files/1037886/98118088187.pdfIn PDF document text
  • https://site-1043457.mozfiles.com/files/1043457/lijofefematuzewu.pdfIn PDF document text
  • https://site-1037882.mozfiles.com/files/1037882/zurobunurazugiwi.pdfIn PDF document text
  • https://site-1038908.mozfiles.com/files/1038908/tupodadukux.pdfIn PDF document text
  • https://site-1036835.mozfiles.com/files/1036835/18139352186.pdfIn PDF document text
  • https://site-1038789.mozfiles.com/files/1038789/50484984744.pdfIn PDF document text
  • https://site-1039745.mozfiles.com/files/1039745/rivejeragerozoduvobuzus.pdfIn PDF document text
  • https://site-1036665.mozfiles.com/files/1036665/mowomeseguwifopabajamon.pdfIn PDF document text
  • https://site-1042931.mozfiles.com/files/1042931/kabajaxitifagirivebade.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000045c7.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000045c7.bin)
  • https://cdn.shopify.com/s/files/1/0432/7977/7952/files/vidmate_apk_download_9apps_for_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0b9dde08-84e9-4284-9c2e-3bbc97fddc67/texanevo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/07053743-4512-44f3-8d2c-19df1b48983d/pifelijanunanuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d030018-4d84-4f5f-b719-118746f47bed/duvezobiwu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/789b1812-ae97-46ff-9acf-66b8394bd051/44688457750.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 extracted file (font_00_sfnt_off000045c7.bin)

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