Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.
• 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://jottigo.ru/aws?utm_term=how+to+reset+2012+honda+civic+maintenance+light PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4380411/normal_601c5c8a5a76a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4377408/normal_5fe1694d2bcb7.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4406166/normal_5ff0afe40efbf.pdfIn PDF document text
  • http://privateguardingserviceagainstdanger.site/how_to_write_a_persuasive_speech_structurev5suw.pdfIn PDF document text
  • http://arthromedro.xyz/94219061231m1tm6.pdfIn PDF document text
  • https://cdn.sqhk.co/wisulekekij/jchd3jg/96566010677.pdfIn PDF document text
  • https://cdn.sqhk.co/losokifape/9rjgjbI/kefuzesir.pdfIn PDF document text
  • https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/garig_vijumin.pdfIn PDF document text
  • https://cdn.sqhk.co/temazajilib/FrgdhfU/lujel.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451220/normal_6027d10181076.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4459177/normal_5fdc107c28ddf.pdfIn PDF document text
  • https://mepubigavij.weebly.com/uploads/1/3/4/5/134599646/f68df6b6.pdfIn PDF document text
  • https://deremufirig.weebly.com/uploads/1/3/4/8/134854029/1749154.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4481278/normal_6048c4f65b92d.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://203e60c5-e32a-4587-ab6d-31d66de6d5b9.filesusr.com/ugd/014c36_19050bf6847343e8b3f86a59264f9014.pdf?index=trueIn PDF document text
  • https://a97cc435-ef8e-4ffb-8544-4b9c0bda5a6e.filesusr.com/ugd/7ab440_9bf0be615aaf4fbdb94d9d134471c4bc.pdf?index=trueIn PDF document text
  • https://7c8f45b7-e058-4e27-bccd-8ee7dcb26900.filesusr.com/ugd/d5cf39_d295abdaa454401b89b9b3a3019c7442.pdf?index=trueIn PDF document text
  • https://5c3e38fa-bf2d-4cda-bfdc-19e9a39f2227.filesusr.com/ugd/b3ada4_954dfcc549cc4943a967c875149f8b00.pdf?index=trueIn 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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