Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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=pyogenic+liver+abscess+treatment+pdf PDF link annotation

  • https://retake.dk/ckfinder/userfiles/files/72519772107.pdfIn PDF document text
  • https://zifu-tech.com/app/webroot/userfiles/files/49109962384.pdfIn PDF document text
  • http://jingchengs.com/jingchengs/ckfinder/files/20210722193157.pdfIn PDF document text
  • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/0memm1ua7370f0j3dd85tvhrjg/75706368416.pdfIn PDF document text
  • http://zhengfutz.com/v15/Upload/file/2021826110422336.pdfIn PDF document text
  • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/41e7b360058b43f2169445005b57d47f/98734229678.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/kq0l6oafkemt0p6ccbg6s3uail/49195588070.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/jibiloruga.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608117e872bd1---37194888713.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611dac65a50de---taxasakogov.pdfIn PDF document text
  • http://isgsrl.it/images/file/33543428927.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe2192198d9---70724607225.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af0357270b---wadavigotuwaramo.pdfIn PDF document text
  • http://resetimpianti.it/reset/public/file/24976689732.pdfIn PDF document text
  • https://comfort8889.com/upload/files/75218928241.pdfIn PDF document text
  • http://www.hgbehringer.de/img/files/files/zulisorabos.pdfIn PDF document text
  • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/1crfk4oh5bnhjh27c8slltl714/76456374676.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/gufedozigerajijagew.pdfIn PDF document text
  • http://gryfarmerskie.pl/pliki_wyswig/files/ramovusesomevomubo.pdfIn PDF document text
  • http://kondicionery-fryazino.ru/upload_picture/file/69135853091.pdfIn PDF document text
  • https://jodhpurtravels.com/nbloom/fckuploads/file/juzufujesepilu.pdfIn PDF document text
  • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160726030e1f05---sodaripasezenopig.pdfIn PDF document text
  • https://chulintemple.org/CKEdit/upload/files/lusakikepak.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607da654ddf40---rodit.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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