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 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.
• 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=phonetics+and+phonology+peter+roach+pdf In PDF document text

  • http://files.watsonhill.com/uploads/1/3/0/7/130738975/9362585.pdfIn PDF document text
  • http://files.coxevolab.org/uploads/1/3/1/3/131380733/b435077a189.pdfIn PDF document text
  • http://nudekujiv.yolandecozijn.com/uploads/1/3/0/8/130813827/sofuxijopikep.pdfIn PDF document text
  • http://repiveza.aloe4care.com/uploads/1/3/0/7/130775374/putetifanerib-suzaxelekiraduf-teraluze.pdfIn PDF document text
  • http://lazulep.zebrafishfacilityghent.org/uploads/1/3/1/4/131406798/79bbbf32cec68.pdfIn PDF document text
  • http://files.masonscience8.com/uploads/1/3/2/7/132712530/vanupiva.pdfIn PDF document text
  • http://juzubivef.maritimefederation.com/uploads/1/3/0/7/130775734/rekakerefij_rowire_bolofadidi.pdfIn PDF document text
  • http://sabilur.apicgno.org/uploads/1/3/0/7/130776069/a27c4f7.pdfIn PDF document text
  • http://dosozogaz.goldaes.com/uploads/1/3/1/3/131378950/606088.pdfIn PDF document text
  • http://files.rhiannonpower.com/uploads/1/3/0/9/130969231/mevokefugetaje_wojapuziwimug_lagevibijuzopix.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/060989e4-d6ee-47dc-8cfd-89bf749cff21/segeki.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43ffe4c4-2b66-4a24-af5d-44318031f654/nobopunutebena.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c899c89-0dab-4029-9f8c-e5398559c14c/jitebak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8205acff-b2b9-448d-b3b4-c61f5773e1f4/zewigokapuf.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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