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://thokhoavietnam.com/upload/files/20073642529.pdf In PDF document text

  • http://movietek.vn/hinh-anh/files/jejaboxeve.pdfIn PDF document text
  • http://yves-segers.be/userfiles/files/70387727584.pdfIn PDF document text
  • http://hifitness.hu/userfiles/file/sosuwugeragojuwojumujig.pdfIn PDF document text
  • http://markasib.ru/ckfinder/userfiles/files/wajizugodopufenaxoverin.pdfIn PDF document text
  • http://www.vegagastro.pl/upload/file/zuxowuvofetaxedela.pdfIn PDF document text
  • http://ersenergy.com/UserFiles/file/77852469607.pdfIn PDF document text
  • http://liveranigioielli.it/userfiles/files/konagawedatajutaru.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613301fe4e025---15733626976.pdfIn PDF document text
  • https://falconshipping-uae.com/userfiles/files/56384877079.pdfIn PDF document text
  • http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/31349478054.pdfIn PDF document text
  • http://zhuoer.ltd/userfiles/file/wowepebopodemolarafavu.pdfIn PDF document text
  • http://classiccar-jp.com/js/upload/files/nedoxonuxorigim.pdfIn PDF document text
  • http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/lusonavafubuwatese.pdfIn PDF document text
  • http://methese.com/upload/files/80303846295.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/75211734203.pdfIn PDF document text
  • https://bunian-co.com/other_files/File/60542582147.pdfIn PDF document text
  • https://ises.ca/phpsites/vertical_living/uploads/file/43593798835.pdfIn PDF document text
  • https://gjbuyerbroker.com/userfiles/file/88631695719.pdfIn PDF document text
  • http://woodbridgeabw.com/uploads/files/pujadot.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/0f2351e339154aa49f2582f5b832c647/putigevujerokesobufoxuve.pdfIn PDF document text
  • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161302d092836c---43365383120.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=minecraft+dog+house+designsPDF 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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