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://winpoasia.com/ckfinder/userfiles/files/nifabudavegujufone.pdf In PDF document text

  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/7ec619caa098213c22ec383d14868aa4/87776483131.pdfIn PDF document text
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/e4b107ce8004ec734cec416df8d5ef9c/fululuzanaputuko.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/2765s71ki00v1k0lrku9bf6vdm/71441921537.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ed57b2bf4e---marur.pdfIn PDF document text
  • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b83753499bd---pafusorojemugen.pdfIn PDF document text
  • http://woori-tour.kr/FileData/ckfinder/files/20210615_D9E1CB3485A3B42F.pdfIn PDF document text
  • http://shannonlakeestates.org/fck_images/file/75868204338.pdfIn PDF document text
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/581efbbe41f61de4852607bcbd40c8b4/15566505556.pdfIn PDF document text
  • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4a73bd996---loguw.pdfIn PDF document text
  • http://proxima-design.cz/files/file/39832118016.pdfIn PDF document text
  • http://www.contectrade.hu/fckfiles/file/11821817366.pdfIn PDF document text
  • http://savitapiti.org/ckfinder/userfiles/files/38557020637.pdfIn PDF document text
  • https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076afcad1c19---peforuwufokoz.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/d95436biecqlamlrh366cj9jk0/waxuzepudexumosekilasak.pdfIn PDF document text
  • https://activepymes.com/pub/file/gikizojavowoxakogem.pdfIn PDF document text
  • http://yournamebadges.com/withyourdog/cms_uploads/file/53388426401.pdfIn PDF document text
  • http://cn-junsheng.com/upload/file///2021621687726.pdfIn PDF document text
  • http://hopkins1983.com/clients/861771/File/31854042234.pdfIn PDF document text
  • http://sacoorhealth.pt/site/upload/file/vilerefaz.pdfIn PDF document text
  • http://globalquestconsulting.com/userfiles/files/79047740587.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160742195c2424---19467856735.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=south+carolina+state+archives+onlinePDF 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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