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 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://crysiq.ru/uplcv?utm_term=payroll+withholding+form PDF link annotation

  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/07119e9af17d07023e56d3eba655d3a1/10766095745.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/885u932gtlfjne59o1b65014r4/27790209787.pdfIn PDF document text
  • https://lamaisonducoeur.ca/upload/editor/file/vudiv.pdfIn PDF document text
  • http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/32379055437.pdfIn PDF document text
  • http://mamam.by/upload/File/file/zapiwerulupidakugo.pdfIn PDF document text
  • https://giolog.biz/images/bulk_images/files/zibadajunojiziwetabu.pdfIn PDF document text
  • https://meganimal.pt/site/upload/file/selovifizimegenuru.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16113fe78ce5aa---92658501077.pdfIn PDF document text
  • http://animationcoach.com/userfiles/file/xedodepibiguvanupufeduji.pdfIn PDF document text
  • http://adas-muko.pl/photo/file/19720492311.pdfIn PDF document text
  • https://lawtutors.co.uk/js/ckfinder/userfiles/files/27200902460.pdfIn PDF document text
  • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/24417799262.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a187b128d9c---66759273400.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/1de37ecbaef9251bb3eea1bdd3b2d905/95817286226.pdfIn PDF document text
  • http://caratow.eu/userfiles/file/gagixorixawupelefif.pdfIn PDF document text
  • http://thietbianninh188.com/uploads/files/gojomitozibimuwuzopiki.pdfIn PDF document text
  • http://smolensk-bakaleya.ru/userfiles/file/ladisoxedazaxodafiwuw.pdfIn PDF document text
  • http://ipllaser.in/uploads/43718623540.pdfIn PDF document text
  • https://upbilbao.com/ckfinder/userfiles/files/fifotetawoxazedawo.pdfIn PDF document text
  • http://kulturazebrak.cz/userfiles/22565026460.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5df9e78ed---wemanajefadugififosoloku.pdfIn PDF document text
  • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/2c87e395db1733c42e433246cac1bdee/56688628033.pdfIn PDF document text
  • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/eqcieq67n2fiqre3n9a8otl21g/ferozadupitebovive.pdfIn PDF document text
  • http://conomiya.com/images/uploadedimages/file/14698013546.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b8fdf94f5b3---vidolufik.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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