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://pixomot.ru/uplcv?utm_term=nh%E1%BA%AFn+tin+ti%E1%BA%BFng+vi%E1%BB%87t+tr%C3%AAn+android PDF link annotation

  • https://cakenflowersonline.com/userfiles/file/14454997311.pdfIn PDF document text
  • https://calmoinc.com/upload/editor/file/dasam.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16132c17f916f0---24124296603.pdfIn PDF document text
  • http://oryginalnedekoracje.pl/userfiles/file/35312510406.pdfIn PDF document text
  • http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/gajarogimukivolovo.pdfIn PDF document text
  • http://tjsyjdq.com/v15/Upload/file/202195135835106.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe8971317e---52253840387.pdfIn PDF document text
  • https://www.solucionaesp.com/ckfinder/userfiles/files/wigiwadekekuxejixodimegep.pdfIn PDF document text
  • https://olterus.info/contents/files/kijefawe.pdfIn PDF document text
  • http://marcus-1.com/FileData/ckfinder/files/20210916_07C86362E59A6767.pdfIn PDF document text
  • https://ibexquimica.com.br/ckfinder/userfiles/files/83356159993.pdfIn PDF document text
  • https://bostaninsaat.com/image/files/15260218125.pdfIn PDF document text
  • https://drosamahetta.com/userfiles/file/40097516371.pdfIn PDF document text
  • http://kaizenlife.com/ckfinder/userfiles/files/potobajirawonizowof.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/gapodo.pdfIn PDF document text
  • http://lamachine.nl/userfiles/file/nusoremojugeza.pdfIn PDF document text
  • http://giteduguedesboires.fr/userfiles/file/78892049279.pdfIn PDF document text
  • http://www.heksan.com.pl/file/zitegotulivavilugeb.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131389619bde---66306873593.pdfIn PDF document text
  • http://locthanhwindow.com/img_duhoc/files/sevurakajarovalov.pdfIn PDF document text
  • http://studioguidobarbieri.it/userfiles/files/7821826125.pdfIn PDF document text
  • http://train-in-japan.com/images/blog/file/48839881281.pdfIn PDF document text
  • http://www.sanjuktabanerjee.com/fckimages/file/24913948419.pdfIn PDF document text
  • http://www.fonfe.com/uploads/files/kigoxuvusupoxoru.pdfIn PDF document text
  • http://symbioticlifetech.org/attfile/fckimg/file///202109135732_829996699.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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