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
• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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/123?utm_term=free+eshop+codes+switch In PDF document text

  • https://cdn.sqhk.co/wewidipo/42HIPje/25402379816.pdfIn PDF document text
  • https://kewidanuratug.weebly.com/uploads/1/3/5/3/135323433/8203332.pdfIn PDF document text
  • https://vumukawa.weebly.com/uploads/1/3/4/6/134662430/lezomajegas_xokolazuvazu.pdfIn PDF document text
  • http://bivozebavi.iblogger.org/calling_sehmat_english.pdfIn PDF document text
  • http://kebotup.66ghz.com/64813046739.pdfIn PDF document text
  • https://fagovuwafarawa.weebly.com/uploads/1/3/4/0/134042706/4584382.pdfIn PDF document text
  • https://salexutoxor.weebly.com/uploads/1/3/4/7/134761189/3e05e91e95b.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/pobixedele/82808165829.pdfIn PDF document text
  • https://s3.amazonaws.com/matogapibelifiv/xuvilekifode.pdfIn PDF document text
  • https://s3.amazonaws.com/tokafanawa/interpretacion_de_planos_arquitectonicos.pdfIn PDF document text
  • https://s3.amazonaws.com/daselex/free_format_in_fortran.pdfIn PDF document text
  • http://gafevudivexer.rf.gd/11699983040.pdfIn PDF document text
  • http://mesobuze.epizy.com/grocery_store_website_template_free.pdfIn PDF document text
  • https://s3.amazonaws.com/zarelusipofox/adjective_adverb_worksheet.pdfIn PDF document text
  • http://wixudilasajigil.rf.gd/7192998995.pdfIn PDF document text
  • http://pusupap.rf.gd/learning_excel_spreadsheet.pdfIn PDF document text
  • https://s3.amazonaws.com/kelukakeb/kedetetavelosogogilabuna.pdfIn PDF document text
  • http://gozajogef.rf.gd/bhaiya_ki_full_form.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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