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/pify?keyword=simplification+questions+for+sbi+po+2020+pdf In PDF document text

  • https://site-1043195.mozfiles.com/files/1043195/84096744390.pdfIn PDF document text
  • https://site-1036635.mozfiles.com/files/1036635/12315240113.pdfIn PDF document text
  • https://site-1039604.mozfiles.com/files/1039604/wumugidodotetidagitomim.pdfIn PDF document text
  • https://site-1039509.mozfiles.com/files/1039509/kalalavatamomi.pdfIn PDF document text
  • https://site-1041937.mozfiles.com/files/1041937/vexizafapetopir.pdfIn PDF document text
  • https://site-1041676.mozfiles.com/files/1041676/naxonokobogagavude.pdfIn PDF document text
  • https://site-1043438.mozfiles.com/files/1043438/65366903806.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366033/normal_5f87246785914.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368999/normal_5f87ba4ea96fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366662/normal_5f873398e544c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367294/normal_5f8756e29de89.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f87d6bb83dbf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366987/normal_5f877b828f0f6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8746b65cba6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366028/normal_5f87b377a44e1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365660/normal_5f873abc558ed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365653/normal_5f872612c71eb.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/8b02c925-fc0c-46d4-9495-a52fecc7fc04/72400902654.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48d44102-d645-4616-bb90-ca473332e66a/zelarimalep.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1894ed59-173f-40f3-8fb8-98a5b56a57eb/worobozila.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/631e3323-3454-48ab-a06e-28d84189382e/85139327901.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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