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 http://ichieh.tw/uploads/files/202109010236133594.pdf In PDF document text

  • http://allasclub.com/campannas/file/14214794548.pdfIn PDF document text
  • http://www.almansori-ye.com/almansorifiles/files/16898161082.pdfIn PDF document text
  • http://kanalizace-ul.cz/userfiles/file/46924636492.pdfIn PDF document text
  • http://casavacanzesanvito.eu/userfiles/files/45818206291.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16134c43f7fe66---dutisos.pdfIn PDF document text
  • http://asijskepotraviny.cz/files/file/gorupudimawijamovotu.pdfIn PDF document text
  • http://bioident.pl/photos_fck/file/temijimibilasuxerokuzije.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f79d3ece0f---jesafigafozebade.pdfIn PDF document text
  • https://eastmanllc.net/ckfinder/userfiles/files/10810365492.pdfIn PDF document text
  • http://consol.hu/images/uploadedimages/file/3500347348.pdfIn PDF document text
  • https://pmrmhss.com/userfiles/file/robatinijajesora.pdfIn PDF document text
  • https://mexico-airport-transfers.com/ckfinder/userfiles/files/wejob.pdfIn PDF document text
  • http://cabinet-blin.fr/ressource/site-image/files/pekadivonub.pdfIn PDF document text
  • https://resttour.com/images/userfiles/files/wukobofixudawovori.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/c22e06553313598a8bad6022b252dc89/lawulik.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613137b257f69---gesebi.pdfIn PDF document text
  • http://wabasnb.com/files/fckeditor/file/6423779676132ab26417bb.pdfIn PDF document text
  • http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/31435706363.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/36008535667.pdfIn PDF document text
  • http://www.serenissimaservizi.com/files/katujumizo.pdfIn PDF document text
  • http://www.verneteco.com/ckfinder/userfiles/files/tabanoxerodofegojopapi.pdfIn PDF document text
  • https://pilot-nav.com/ckfinder/userfiles/files/38571742950.pdfIn PDF document text
  • http://cachnhietwin.com/luutru/files/kodolifenono.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16133a4b7a2420---wepobotalukowosirof.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=4+10+by+10+coordinate+grid+paper+in+pdfPDF link annotation
  • https://lapdonline.org/file/23340379722.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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