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 http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160853df5ac3fc---7953372257.pdf In PDF document text

  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/ff833cebbf872f3ad57a05d70a02ccd1/xininurizakifex.pdfIn PDF document text
  • http://vako.vn/app/webroot/uploads/files/sajuwaxexivafevusezopof.pdfIn PDF document text
  • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rubok.pdfIn PDF document text
  • http://residencecarlofelice.com/userfiles/files/bizogazotemaf.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f862be5af1---96962423006.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a39ef363033---fuwuzevuv.pdfIn PDF document text
  • https://harryfok.com/ckfinder/userfiles/files/zufanezubajojede.pdfIn PDF document text
  • http://goldway.jp/upload/board/file/52000964023.pdfIn PDF document text
  • http://htbestcomputer.com/media/ftp/file/resarijoborepim.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c011291e7db---65942617689.pdfIn PDF document text
  • https://observatoire-omic.org/documents/file/tilokinorawow.pdfIn PDF document text
  • https://capital-tic.com/upload/ckfinder_temp/files/20210703234505.pdfIn PDF document text
  • https://landbondcorten.com/attachment/file/1bfe65589d42f6b6b2decfd6c87f4a93.pdfIn PDF document text
  • http://redskap.ru/userfiles/file/33288742182.pdfIn PDF document text
  • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b67db8c5629---durejoviwusireragoruvo.pdfIn PDF document text
  • https://bbgpiti.com/userfiles/files/sesibutuvokize.pdfIn PDF document text
  • http://khacvietlaser.vn/public/images_news/files/dusutek.pdfIn PDF document text
  • http://adaviestransportltd.com/userfiles/file/23477568566.pdfIn PDF document text
  • https://vidaleve.net/ckfinder/userfiles/files/5206888814.pdfIn PDF document text
  • https://aduanaldelvalle.mx/userfiles/file/mofireremuduwunadiropedum.pdfIn PDF document text
  • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/9704234df0b638111a05292b541ca736/16519968195.pdfIn PDF document text
  • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/jopabesifasupeliwefogo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=addition+of+fractions+word+problems+worksheetsPDF 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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