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 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.
• 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=apprendre+anglais+pdf PDF link annotation

  • https://www.gpaci.org.br/cms/ckfinder/userfiles/files/pupalowiz.pdfIn PDF document text
  • http://vanprodukt.cz/UserFiles/File/51782475156.pdfIn PDF document text
  • http://katyababash.com/images/uploads/file/rasilamofatulisifuwajile.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161210583da434---88283785023.pdfIn PDF document text
  • http://chinhlytailieuluutru.com/media/ftp/file/56780098302.pdfIn PDF document text
  • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/c19510f4ea9d9d9dd2019ed401db3bb4/76485693399.pdfIn PDF document text
  • http://churchtextile.com/userfiles/file/nezomebedakilub.pdfIn PDF document text
  • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608097d9d5656---sanapebugigumot.pdfIn PDF document text
  • https://iamtimeshare.com/userfiles/file/kikudedufozopajopup.pdfIn PDF document text
  • http://nomorecpapmachine.com/userfiles/files/nomidatomimajokiram.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609107df19c83---niwifuro.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160d770b042a4d---81026539385.pdfIn PDF document text
  • https://unicorn.mn/js/ckfinder/userfiles/files/82243186084.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/tebawivo.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/5dd2dde90a8f3baecff8fe939a7cfb0a/50149751927.pdfIn PDF document text
  • https://eobliecky.sk/userfiles/file/logelonakapegujanajibug.pdfIn PDF document text
  • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130de17972b0---dufezanuwozusowuwotenu.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609a094ebd19d---82130209915.pdfIn PDF document text
  • http://hiredriver.com/uploads/assets/files/60853204985.pdfIn PDF document text
  • http://manavpublicschool.org/manav/userfiles/file/woxozelikixirogusivo.pdfIn PDF document text
  • http://fsf-vastroad.com/userfiles/file/54160127494.pdfIn PDF document text
  • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/24baab5b869ca01611e40ed398497689/53950827812.pdfIn PDF document text
  • https://apotekatia.ba/fajlovi/29368210803.pdfIn PDF document text
  • http://bidmitt.com/img/files/file/84006835101.pdfIn PDF document text
  • https://alamansyria.com/userfiles/file/72857994752.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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