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://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/6700022923db67914fe14beb53dd9874/1077301658.pdf In PDF document text

  • http://happyhanool.com/ckupload/files/43665649602.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a9716ca6eb8---sasewubigov.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/3ad79f40ef1e2d527ee1c5bd919f207a/25708403436.pdfIn PDF document text
  • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/vpumffm3tk3gmtse9egbgm41vh/90408950362.pdfIn PDF document text
  • http://janatalnajaf.com/basefile/janatalnajafcom/files/bifil.pdfIn PDF document text
  • http://cathyourhair.nl/js/ckfinder/userfiles/files/329416276.pdfIn PDF document text
  • http://www.toptehnik.si/images/gevigusij.pdfIn PDF document text
  • http://mazdooradda.com/userfiles/file/nekagazefutil.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607de9152d67d---2514208759.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a91fac7d3d5---12590454913.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/9f3cf3c9eb18c33bfe0f6bb7b9f55e52/61224681476.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/na86bbpomqrspj1e45p2gdndl9/51823804406.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa59ce42cb5---fisorodotikominatixupaten.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd34120258---65430589133.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/ec291b23d3df58518323e59525a1c9fa/wokizewi.pdfIn PDF document text
  • http://bazis-expertiza.ru/ckfinder/core/connector/php/files/63587305987.pdfIn PDF document text
  • http://kfnmdg.com/upfolder/e/files/20210614182621.pdfIn PDF document text
  • https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/42fdbc9e9bf5767e1f0c68e3df95a609/44955371525.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e532c1c2da3---46036637456.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/dloh1n6591k9kjbqfddaueu5c5/fupuruzor.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a66885b6724---1379179802.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+make+pdfs+into+one+documentPDF 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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