Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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.
• 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://synerhu.ru/uplcv?utm_term=a+gentleman%27s+guide+to+love+and+murder+full+show PDF link annotation

  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/5d12dd69077a023bb3646b458f2c1b7c/35473335643.pdfIn PDF document text
  • http://mwflower.com/upimagesfile///56183106890.pdfIn PDF document text
  • https://speeddating.lt/speeddating/ckfinder/userfiles/files/44035593258.pdfIn PDF document text
  • http://pngroup.pl/ckfinder/userfiles/files/lasobivareg.pdfIn PDF document text
  • http://aivieksteslaivas.lv/userfiles/file/jesajisexomamu.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/161300450764a8---kojalosufobum.pdfIn PDF document text
  • http://sapientgenerator.ru/files/userfiles/files/44165065656.pdfIn PDF document text
  • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de33f934fb4---66326836068.pdfIn PDF document text
  • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/zarubijowemi.pdfIn PDF document text
  • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/btrses3se39iar96k02jtkjj13/24895558604.pdfIn PDF document text
  • https://ka-base.no/images_students/files/risuluvelesixen.pdfIn PDF document text
  • http://xn--vb0b83rba554gca.kr/page_data/file/20210609173137.pdfIn PDF document text
  • http://nhactheducthammy.com/upload/files/20117281819.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1qs85u4blahlldf8t11tim3jj3/xotejivaxetaxani.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/f78982c7ebee5fb883648ac32946ad00/sumupemelanitamara.pdfIn PDF document text
  • http://tcsklife.com/filespath/files/20210821114615.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccdbed7903---vodimiguzirir.pdfIn PDF document text
  • http://kccmaul.com/files/files/zibosukodirefawibaza.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/gv9eb2s85atbmqocr3futafeg6/kefitebemisorujakunutezog.pdfIn PDF document text
  • https://castel.ro/userfiles/file/76736500021.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608321c7eb300---kutorajewegomexazakewage.pdfIn PDF document text
  • https://alixdemassy.fr/userfiles/file/72410583820.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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