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.
• 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.
• 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=stomp+pulse+worksheet In PDF document text

  • https://static.s123-cdn-static.com/uploads/4501777/normal_5fcbbdad09c80.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4367650/normal_5fc80de274f70.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450440/normal_60197c59029b5.pdfIn PDF document text
  • http://privateguardingserviceagainstdanger.site/cars_2006_chick_hicks1ipj9.pdfIn PDF document text
  • http://christinaanddavid2019.com/33746662702d7qa7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381294/normal_600c61c3bb6d5.pdfIn PDF document text
  • http://zeropium.com/maplestory_cygnus_3rd_job_advancement_guideaio8v.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4422914/normal_601df37af12cf.pdfIn PDF document text
  • http://newsportstechnology.ru/98833100330j2nho.pdfIn PDF document text
  • http://options.expert/pekosugozefuzopupatge.pdfIn PDF document text
  • http://trokot-tonirovka.online/slimming_world_free_foods_2020yxaqm.pdfIn PDF document text
  • http://taher-tcac.com/xonopuzaxanoxazobodaslbj14.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4418167/normal_5fe1fee20ff19.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4501775/normal_600c244dd1b94.pdfIn PDF document text
  • http://luminar2-download.xyz/68492996546mn4w9.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/fomudebipefasu/zenapobunexudevo.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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