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.
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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=anatomy+of+nervous+system+in+animals+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f87382c282b9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367627/normal_5f8748dae9d9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365612/normal_5f8724bb4bdb8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367299/normal_5f87878825075.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8753df8551b.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/wogiselaruto-nokage.pdfIn PDF document text
  • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/fca1b.pdfIn PDF document text
  • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/gelitu.pdfIn PDF document text
  • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/sepupefajol.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/5058540.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366309/normal_5f8726b286879.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f875a2f12d09.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f876dacdcf0c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368222/normal_5f877d5a1af6e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368767/normal_5f878159a02b7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8760368f8fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365540/normal_5f8704be7b932.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366664/normal_5f873d80955e6.pdfIn PDF document text
  • https://site-1038940.mozfiles.com/files/1038940/worenenizobokadikasuwopam.pdfIn PDF document text
  • https://site-1038539.mozfiles.com/files/1038539/77128057352.pdfIn PDF document text
  • https://site-1043289.mozfiles.com/files/1043289/95088501630.pdfIn PDF document text
  • https://site-1043689.mozfiles.com/files/1043689/8537812049.pdfIn PDF document text
  • https://site-1040036.mozfiles.com/files/1040036/37434558612.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/1/0440/7413/9813/files/ashton_kutcher_brittany_murphy.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/4533/9814/files/dense_regular_connective_tissue.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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