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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• 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
• 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) 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://archism.ru/uplcv?utm_term=how+to+connect+wifi+with+qr+code+android PDF link annotation

  • https://simplehome.ro/ckfinder/userfiles/files/99083562531.pdfIn PDF document text
  • https://nayyaralidada.net/alpha/ckfinder/userfiles/files/degiredubidudoligota.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-9-12/20210912011529817074.pdfIn PDF document text
  • http://heimundsicherheit.de/userfiles/file/14965351338.pdfIn PDF document text
  • http://ph-easycome.com/userfiles/file/lozedanazuborota.pdfIn PDF document text
  • https://konchris.com/userfiles/file/1631728177.pdfIn PDF document text
  • http://medicare-darmstadt.de/bilder/UserImages/file/44762832564.pdfIn PDF document text
  • http://rainhouse.kr/data/editor/file/13459445356137128e2e25f.pdfIn PDF document text
  • http://ricettebiagi.it/uploads/assets/file/2228095796.pdfIn PDF document text
  • http://lexxyin.net/files/fckeditor/file/87907045738.pdfIn PDF document text
  • https://pixel.bg/img/file/finusakazazogibid.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/5daf077873c939a5625b1d8837491efb/puxadobaxadigezoxuke.pdfIn PDF document text
  • https://verandapattaya.com/userfiles/files/95152523876.pdfIn PDF document text
  • http://johnmarzillier.com/ckfinder/userfiles/files/nezesu.pdfIn PDF document text
  • http://isleford.com/filespath/files/20210902115423.pdfIn PDF document text
  • http://generaldistco.com/images/file/venakenotafagabevovuxaxel.pdfIn PDF document text
  • https://vinacomvietnam.vn/uploads/news_file/58905678737.pdfIn PDF document text
  • https://intekcanada.com/ckfinder/userfiles/files/43562837394.pdfIn PDF document text
  • http://bon-mar.com/fck_user_files/file/verojisu.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f8fc94ae9---muvojidor.pdfIn PDF document text
  • https://seas2010.cienciaevida.pt/site/upload/file/vunuza.pdfIn PDF document text
  • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc47c223d4---91049150078.pdfIn PDF document text
  • http://ty-int.com/files/files/16546249367.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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