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 https://archism.ru/uplcv?utm_term=djvu+to+pdf+converter+download+for+windows+8 PDF link annotation

  • http://mrbossamktown.com/uploads/files/rokosi.pdfIn PDF document text
  • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/3be4b1c9ddd9412dcc5a51a26896b6eb/16073513281.pdfIn PDF document text
  • https://ascend.sut.ac.th/ce/2017/src/plugins/ckfinder/userfiles/files/66494954546.pdfIn PDF document text
  • https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/36174677445.pdfIn PDF document text
  • http://jcon-aps.dk/userfiles/file/pegadamilur.pdfIn PDF document text
  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16103500b6d5c6---57964758587.pdfIn PDF document text
  • https://chrmglobal.com/userfiles/file/38172626932.pdfIn PDF document text
  • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/a07deb80e5bdcc3b13993cf79840c07b/18452875932.pdfIn PDF document text
  • http://sipsak.nl/userfiles/file/sitanuzasojuwomutagu.pdfIn PDF document text
  • http://ufnk.fr/app/webroot/files/file/davokafuxoxovusored.pdfIn PDF document text
  • https://cafesca.info/ckfinder/userfiles/files/vexuken.pdfIn PDF document text
  • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160735edaf3963---11443971529.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/jasozunesuxupobopowekir.pdfIn PDF document text
  • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f5fc68446f9---zaxuxatasesuforujodin.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/92706067223.pdfIn PDF document text
  • http://veivel.com/userfiles/file/mimasukotuzajerogejela.pdfIn PDF document text
  • http://duda-tech.pl/dudatech/upload/file/85918554842.pdfIn PDF document text
  • https://nmg.lv/img/uploads/files/20338791476.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3727b70ff1---13896447183.pdfIn PDF document text
  • http://bige.vn/uploads/userfiles/file/44647001952.pdfIn PDF document text
  • http://miele-service-center.ru/uploads/files/pidojesetadawidenapakijoz.pdfIn PDF document text
  • https://seedomoretravel.com/files/files/28777394559.pdfIn PDF document text
  • http://castanienfamily.com/clients/74558/File/pevojamulevox.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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