Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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.
• 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://resalured.ru/award?keyword=difference+between+symmetric+and+asymmetric+key+cryptography+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4489732/normal_60405fd56f3c6.pdfIn PDF document text
  • http://wowitaly.space/how_does_a_membrane_oxygenator_work8lew4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378834/normal_5fdabb1b6fe04.pdfIn PDF document text
  • http://instasurprise.online/jurosedelilekodurikidi211.pdfIn PDF document text
  • http://budokudepa.scienceontheweb.net/how_to_become_a_marine_safety_officer.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4491151/normal_6047916de26c0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4445735/normal_6021968b670e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4498348/normal_60636a0239e84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393029/normal_60244f6ceb774.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416939/normal_602de3e26c9b7.pdfIn PDF document text
  • http://busivel.xyz/computer_troubleshooting_flowchart8yyjd.pdfIn PDF document text
  • http://productwood.ru/hp_deskjet_2542_wireless_setup_macvfp6s.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4459794/normal_604f6747d79db.pdfIn PDF document text
  • http://wofefudolojet.mywebcommunity.org/cameron_diaz_body_book_download.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447101/normal_60518f57e882c.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4467577/normal_5fdeea240fe90.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://8ee4d174-735f-4cd7-9396-c3a65dbcc337.filesusr.com/ugd/5ac313_1d6eda7245c048a6917f3bfa6ccd2349.pdf?index=trueIn PDF document text
  • https://b03e51a8-7171-48c0-94d6-e4c032e6f37f.filesusr.com/ugd/9421c8_05bd4590336646b1a0edae376b8805a9.pdf?index=trueIn PDF document text
  • https://c8070bf9-ed42-4c5d-8eb8-ca35ee70f136.filesusr.com/ugd/d38238_d4e6e46f062f4e77a2bc00172720466f.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/dewutexorob/math_worksheet_for_grade_1_measurement.pdfIn PDF document text
  • https://ab60d57a-1f92-408f-9079-0b325776b613.filesusr.com/ugd/724fb5_3c87a426e6a649cf9ad37e65d910aa9d.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/zonivezada/punctuation_rules_english.pdfIn PDF document text
  • https://s3.amazonaws.com/gizonukorad/set_me_as_a_seal_rene_clausen.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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