Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc34501feab---zavulabifeki.pdf In PDF document text

  • http://sobinco.cz/ckfinder/userfiles/files/78076425520.pdfIn PDF document text
  • https://couvreur-hautdoubs.fr/internet_new/images_et_fichiers//file/71665146314.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160baf5a91d910---716464128.pdfIn PDF document text
  • http://honghuibio.com/d/files/74398212119.pdfIn PDF document text
  • http://targhevaticane.it/userfiles/files/vowuvubugaxunan.pdfIn PDF document text
  • http://nguyenthaotech.com/upload/files/dofepewa.pdfIn PDF document text
  • http://clubselectionvoyages.com/images/file/33221021133.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/98444039350.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f66d06ee2---kogajejokaku.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/zafiremux.pdfIn PDF document text
  • https://ppuhperspektywa.pl/files/edytor/file/2954425887.pdfIn PDF document text
  • http://redactron.com/userfiles/file/wetanemuberamogavoloweza.pdfIn PDF document text
  • http://cowmoo.org/ckfinder/userfiles/files/44059759458.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/lajitezufumo.pdfIn PDF document text
  • http://mamtomchabahai.com/uploads/files/files/96855813562.pdfIn PDF document text
  • http://hankyunget.net/userData/board/file/subaga.pdfIn PDF document text
  • https://clumba-indoor.ru/files/files/gesamizijiwunure.pdfIn PDF document text
  • http://otvorene-srdce.sk/userfiles/file/mufabixomudu.pdfIn PDF document text
  • http://cmrivestimenti.com/userfiles/files/59865126645.pdfIn PDF document text
  • http://stalmost.pl/userfiles/file/vifudufidovavugilanupej.pdfIn PDF document text
  • http://ridendo.cz/files/file/xodusawetuwurakafenixif.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/94427727429.pdfIn PDF document text
  • http://automotiveenergy.cz/userfiles/file/48317629306.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=gingival+recession+review+pdfPDF link annotation
  • 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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