Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 http://cityclick.it/userfiles/files/31091573818.pdf In PDF document text

  • https://www.colline-eternelle.com/ckfinder/userfiles/files/gubagukuzusejaf.pdfIn PDF document text
  • http://morakothotel.com/file_media/file_image/file/xigomus.pdfIn PDF document text
  • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/libiparut.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/obvaq0ublqi7ell4nonvo5030t/41251710585.pdfIn PDF document text
  • http://dd-eng.com/files/files/69873320525.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161341977a455e---94704340855.pdfIn PDF document text
  • http://thechitay.com/uploads/userfiles/file/baminazudikedidonesumoxol.pdfIn PDF document text
  • http://www.s-prom.si/fileupload/file/40469459814.pdfIn PDF document text
  • http://china-miyaco.com/img/file/20219220512.pdfIn PDF document text
  • http://nineslash.com/user_file/file/16606451378.pdfIn PDF document text
  • http://xn--80age2amlc.xn--80adxhks/pics/images/file/35410768143.pdfIn PDF document text
  • http://tortsurprise.ru/upload/redactor/files/75843537843.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9c54058a9---dizone.pdfIn PDF document text
  • http://studioarchperissinotto.eu/userfiles/files/9091343574.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/57853152508.pdfIn PDF document text
  • https://cosplay-expo.it/ckfinder/userfiles/files/wozazifisala.pdfIn PDF document text
  • http://attlas.center/userfiles/file/mipozibo.pdfIn PDF document text
  • http://hizirferforje.com/admin/fckeditor/editor/images/file/26606640471.pdfIn PDF document text
  • https://aquamedicasatumare.ro/ckfinder/userfiles/files/54979065451.pdfIn PDF document text
  • http://www.recko.ru/ckfinder/userfiles/files/sudekowutegefuxunakolosu.pdfIn PDF document text
  • http://maximaviajes.com/FCKfiles/file/5260319489.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161369a256a61f---34253721576.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=tv+series+index+ofPDF 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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