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
• 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://seumenha.ru/wix?keyword=vonnegut+2br02b+pdf PDF link annotation

  • http://mamajan.space/jefesupetaragewovevukigowmdbop.pdfIn PDF document text
  • http://fitnesspack.net/41454249143dxcfp.pdfIn PDF document text
  • http://form-lnstagramverifiedbadges.com/83686305325f2yq0.pdfIn PDF document text
  • http://studytogether.fun/daboxu2z8sm.pdfIn PDF document text
  • http://xozonline.ru/follow_up_patient_reported_outcomes3ok4d.pdfIn PDF document text
  • http://load-bcp.com/big_battle_3d_mod_apk_latest_versionmnenl.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369486/normal_5fc9a5ee2506e.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4426262/normal_5ffb14906a3fe.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/tipikaxe/xuguminazef.pdfIn PDF document text
  • https://s3.amazonaws.com/goneduzum/apache_ant_windows_installer.pdfIn PDF document text
  • https://s3.amazonaws.com/dudurat/27340147409.pdfIn PDF document text
  • https://s3.amazonaws.com/tevomenil/beauty_salon_service_2016.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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