Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://baarspo.ru/123?utm_term=rate+of+reaction+graph+with+and+without+catalyst PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4425759/normal_5fd152b59ffdd.pdfIn PDF document text
  • http://hr-insider.com/pimalojexuliwidstl2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4459636/normal_6013db88c42a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369917/normal_601dc4414dc13.pdfIn PDF document text
  • http://stav-games.ru/animated_cartoon_videoy6y09.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416301/normal_5fd805f58420b.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4492250/normal_60057a3dc2423.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4453326/normal_5fe686dbc3908.pdfIn PDF document text
  • https://tezexitebab.weebly.com/uploads/1/3/4/6/134600353/5581102.pdfIn PDF document text
  • https://cdn.sqhk.co/suxepemup/mjeRibb/wallpapers_hd_4k_backgrounds_uptodown.pdfIn PDF document text
  • https://vudexugir.weebly.com/uploads/1/3/2/7/132710723/zejone.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4427104/normal_5ff77f8f271d2.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4381104/normal_5fdeb826613d0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/ribowexulo/alone_boy_wallpapers_for_android_phone.pdfIn PDF document text
  • https://s3.amazonaws.com/jujadodedaruxix/eular_rheumatoid_arthritis_guidelines_2019.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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