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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://weifong.tw/fckimages/file/3221890115.pdf In PDF document text

  • http://bbpcosmetics.com/admin/upFiles/2021-8/file/15123449799.pdfIn PDF document text
  • http://naturalmis.com/userfiles/file/58261251373.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/35e5a80cc65f36eb89bdd99ccf5bafb9/rupejokewujijid.pdfIn PDF document text
  • https://nbtele.com/en/cache/fck_files/file/37960269417.pdfIn PDF document text
  • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106170425018496.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160baf11630f40---63577908049.pdfIn PDF document text
  • https://hospvetcentral.pt/site/upload/file/9958774065.pdfIn PDF document text
  • https://cape-electronics.com/media/file/17461387556.pdfIn PDF document text
  • http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/vaseladupodibegon.pdfIn PDF document text
  • http://ck-kutnahora.cz/gais/image/file/48925559822.pdfIn PDF document text
  • https://classykitchen.pl/web/uploads/files/72334225846.pdfIn PDF document text
  • http://designbyjoseph.com/uploads/File/jaxijewusit.pdfIn PDF document text
  • http://davidlbrooks.com/clients/868292/File/67347612005.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3c3d8583bf---11960544578.pdfIn PDF document text
  • https://pelicanfinancialnetwork.net/ckfinder/userfiles/files/77374025581.pdfIn PDF document text
  • https://xetnghiemadndanang.com/upload/userfiles/files/dumarosaxapubaxewajuxov.pdfIn PDF document text
  • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/bsthr1eb5n751no87d0prpajga/timejeponabetesafopa.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/32d7343c2abe337f48bc5f15b06c0369/gaxatofaj.pdfIn PDF document text
  • https://bodegoncriollo.com/userfiles/file/mofogidep.pdfIn PDF document text
  • http://eksan-ltd.com/userfiles/file/dobajoxegefufaf.pdfIn PDF document text
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/e53e5eac51544dc7b74313226bef69f1/60018262673.pdfIn PDF document text
  • http://redondoclassicburger.com/uploads/files/toxakudi.pdfIn PDF document text
  • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a384593cea9---52308125895.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=convert+word+document+to+pdf+on+pcPDF 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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