Malicious PDF — malware analysis report

Heuristics 6

• 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.
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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=romeo+and+juliet+writing+prompts+act+2 In PDF document text

  • http://files.evoconsys.com/uploads/1/3/1/4/131483420/2370007.pdfIn PDF document text
  • http://wisedemiw.bodyprose.com/uploads/1/3/1/4/131438860/xirarewa.pdfIn PDF document text
  • http://files.primarytechunit.com/uploads/1/3/1/6/131636906/buwugukuwenoz_sezazubodawaf_sojojesubitupam.pdfIn PDF document text
  • http://files.tillersmath.com/uploads/1/3/0/9/130969434/75066b99189aec2.pdfIn PDF document text
  • http://roliped.sexoffendercontainment.com/uploads/1/3/2/7/132712593/1895854.pdfIn PDF document text
  • http://mobir.royaloakptacouncil.com/uploads/1/3/0/7/130775726/117345.pdfIn PDF document text
  • http://files.tancheewah.com/uploads/1/3/1/6/131607093/xamata.pdfIn PDF document text
  • https://site-1037018.mozfiles.com/files/1037018/zodipef.pdfIn PDF document text
  • https://site-1037842.mozfiles.com/files/1037842/tixupavasitutebid.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005fca.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005fca.bin)
  • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/vasupenubil.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_off00005fca.bin)

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