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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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://jacksth.ru/wb?keyword=brute%20force%20iphone%20passcode PDF link annotation

  • https://cdn.sqhk.co/wojipezusax/hg4ghhf/14038785661.pdfIn PDF document text
  • http://befemuvejizu.22web.org/thyroid_function_tests_uk_guidelines.pdfIn PDF document text
  • https://sonanibiforopo.weebly.com/uploads/1/3/2/7/132710732/pumep.pdfIn PDF document text
  • https://cdn.sqhk.co/wajerewuwer/O4jaqgi/mud_bogging_monster_truck_videos.pdfIn PDF document text
  • http://mon-cmb.best/41356189796wuxq0.pdfIn PDF document text
  • https://totovipuvo.weebly.com/uploads/1/3/2/7/132740708/23a4c4c1.pdfIn PDF document text
  • https://cdn.sqhk.co/xixujipum/gdWm2HF/fanorem.pdfIn PDF document text
  • https://cdn.sqhk.co/navozaxezini/icgdP7A/23971204972.pdfIn PDF document text
  • http://seamanygau.best/207955421607feg7.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://vobewegogiz.rf.gd/38136379582.pdfIn PDF document text
  • https://s3.amazonaws.com/febopa/49769424763.pdfIn PDF document text
  • http://wulitebajanuba.rf.gd/vujala.pdfIn PDF document text
  • https://s3.amazonaws.com/piwanisaj/kipukabonoxutoxixiduv.pdfIn PDF document text
  • http://muxobuduxude.epizy.com/dispensing_error_log_sheet.pdfIn PDF document text
  • https://s3.amazonaws.com/ruzumeb/xuwanafupelamisegale.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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