Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Brand-impersonation credential phishing lure high 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: call-to-action link host does not match the impersonated brand: https://crophysi.ru/wix?keyword=8th+grade+us+history+textbook.
• 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://crophysi.ru/wix?keyword=8th+grade+us+history+textbook In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367294/normal_60170094d7be9.pdfIn PDF document text
  • https://cdn.sqhk.co/musutalivun/dhieja4/julubomufiwepukosumeta.pdfIn PDF document text
  • https://cdn.sqhk.co/susojitigi/N19gehb/fear_the_walking_dead_netflix_australia.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420600/normal_6016e18fa717a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4402517/normal_5ff8b701639d8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401696/normal_60293eedef3aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483608/normal_600cbe36b0819.pdfIn PDF document text
  • https://cdn.sqhk.co/xiwapusumoge/fggjd55/hungry_fisherman_johns_pass.pdfIn PDF document text
  • https://cdn.sqhk.co/zasemewiti/iehadia/kia_soul_2020_solar_yellow.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
  • http://tosodesuvivat.epizy.com/2675745631.pdfIn PDF document text
  • https://s3.amazonaws.com/dusined/gironi_mondiali_di_calcio_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/lakujusitejojet/mafafamewujesazusa.pdfIn PDF document text
  • http://xojorefalez.rf.gd/zekanejofowewi.pdfIn PDF document text
  • https://s3.amazonaws.com/wupiwupiwot/free_complaints_policy_template.pdfIn PDF document text
  • https://s3.amazonaws.com/rilexazejuzovep/oxford_english_dictionary_online.pdfIn PDF document text
  • https://s3.amazonaws.com/bubeto/android_studio_change_name_of_app.pdfIn PDF document text
  • http://zagebixomibolo.rf.gd/kmsauto_activator_office_2016_free.pdfIn PDF document text
  • http://riwexakax.epizy.com/bihar_b._ed_application_form_date.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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