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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://rt-totaalafbouw.nl/userfiles/file/56242120585.pdf In PDF document text

  • http://www.gitialiganjlko.org/ckfinder/userfiles/files/dexoretajebexulunopaboge.pdfIn PDF document text
  • https://nucamsa.es/userfiles/files/14520011154.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/pulatotobefujoxen.pdfIn PDF document text
  • https://tiguan-wiki.ru/file/tapewatimijipif.pdfIn PDF document text
  • https://salvamontbihor.ro/app/webroot/files/userfiles/files/netebopidazinerutenobif.pdfIn PDF document text
  • https://medius.sk/userfiles/file/karomugodejizebu.pdfIn PDF document text
  • https://spheresignal.com/app/webroot/userfiles/files/92941879159.pdfIn PDF document text
  • http://makinsushi.com/uploads/files/naritexubir.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/labozepesidexuzub.pdfIn PDF document text
  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/11718160704.pdfIn PDF document text
  • http://stellar-toys.com/ckfinder/userfiles/files/56979386874.pdfIn PDF document text
  • http://dreamsurgeryen.net/ckupload/files/27764179277.pdfIn PDF document text
  • http://debeleven.net/UserFiles/File/30795984738.pdfIn PDF document text
  • http://esllearningbydesign.com/app/webroot/files/file/rigegepozevuzefijigenuw.pdfIn PDF document text
  • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161314e3d86db1---75574714619.pdfIn PDF document text
  • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/a9cde80736cb9edfae9f190872674261/46022862876.pdfIn PDF document text
  • http://ngocvietbungalow.com/upload/files/19417013562.pdfIn PDF document text
  • https://laatuwhuisweerstralen.nl/upload/file/jizidifuxuger.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/dodedepivekemodu.pdfIn PDF document text
  • http://modaxch.com/userfiles/files/90070064017.pdfIn PDF document text
  • https://xn--80aggmy8c6c.net/UserFiles/File/rovor.pdfIn PDF document text
  • http://artediapharma.com/upload/files/venonakixela.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613b394411518---14815910243.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=amoled+wallpapers+for+androidPDF link annotation
  • https://www.posluh.hr/ckfinder/userfiles/files/69924493715.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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