Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://rowisinudusa.weebly.com/uploads/1/3/5/3/135310113/6963905.pdf.
• 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://dafemum.ru/wix?keyword=guest+wifi+terms+and+conditions In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375356/normal_5fd63494acf3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4418167/normal_600bea3e990bc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4424935/normal_60172d35235a8.pdfIn PDF document text
  • http://subonus.ru/trigonometry_larson_10th_editionvbqat.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4479675/normal_5fcedb978d07c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379384/normal_602eabe3eb526.pdfIn PDF document text
  • https://cdn.sqhk.co/gaxomawelej/AjjgzOU/zombie_objective_hackeado.pdfIn PDF document text
  • https://rowisinudusa.weebly.com/uploads/1/3/5/3/135310113/6963905.pdfIn PDF document text
  • https://lawuzifelive.weebly.com/uploads/1/3/4/0/134041442/valijoxebisarugi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4419451/normal_602a24553c977.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4454290/normal_5fec795cd3556.pdfIn PDF document text
  • http://bandalet.club/music_notes_treble_clef_worksheetweqlk.pdfIn PDF document text
  • https://cdn.sqhk.co/timugulirebu/Vjehjib/viren_warzen_entfernen.pdfIn PDF document text
  • https://cdn.sqhk.co/gabazumad/AbhhigE/free_offline_world_atlas_download_for_pc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369508/normal_603d7e5a51ee2.pdfIn PDF document text
  • http://top-salez.site/xunosefo0a6wa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369783/normal_5fe4ea87d513a.pdfIn PDF document text
  • https://cdn.sqhk.co/devisojop/jDidiaJ/30347270648.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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