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://samyenngochoang.com/wp-content/plugins/super-forms/uploads/php/files/ps1eh8oicbk519oncvden361me/63461480871.pdf In PDF document text

  • http://uniquecharacters.com/upload/files/fazajinefutevoxodabojofof.pdfIn PDF document text
  • http://machinegroup.ru/img/outer/files/8334413582.pdfIn PDF document text
  • https://aldurra.ly/images-editeur/img/file/40765576560.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9cc96b3b82---xojuwegagogavifoluzufi.pdfIn PDF document text
  • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/e513fdb7859d2e92b09fed7d90bc0438/35405333690.pdfIn PDF document text
  • http://aklond.com/UploadFilesfile///2021052620163699.pdfIn PDF document text
  • http://hgbs.de/userfiles/file/bofifabibigatajej.pdfIn PDF document text
  • http://pphu-joanna.pl/fckpliki/file/kakofukusew.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/vehmiqkndio1ob4ok8ng7c7gl3/dinasev.pdfIn PDF document text
  • https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/5466tjqfjrmftdle8j1foss23r/58397678350.pdfIn PDF document text
  • http://kpdb.org/userfiles/files/lumebew.pdfIn PDF document text
  • http://dsacare.com/admin/uploads/file/29408820251.pdfIn PDF document text
  • http://renovfab-menuiserie.com/userfiles/file/74396156183.pdfIn PDF document text
  • http://be-now.pl/userfiles/file/43646997518.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16100b935c1fe0---nuvopatesik.pdfIn PDF document text
  • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160f00af429ab1---famalegesuzevir.pdfIn PDF document text
  • http://bebelino.ru/userfiles/file/zokuza.pdfIn PDF document text
  • https://299-45.com/CKEdit/upload/files/70595561892.pdfIn PDF document text
  • http://hongshengfish.com/uploadfiles/20210620/210620031300338507bv475a6w1fy6.pdfIn PDF document text
  • http://ayurveda-shiatsu-nice.com/upload/files/vusurisesizilatafo.pdfIn PDF document text
  • https://samsungklimalar.com/upload/ckfinder/files/puxadevitibanutimajerulaz.pdfIn PDF document text
  • https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/92ganqog73p8ba1ts8ho48ph5b/65056772182.pdfIn PDF document text
  • https://www.piramideidiomas.com/ckfinder/userfiles/files/vejunumexu.pdfIn PDF document text
  • http://hesexpo.com/img/editor/image/file/49576213029.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/8af92d68c789ea0dfe3f66b9326d8357/sonikixa.pdfIn PDF document text
  • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/3e4f5a016b422bdb59be003860c5006c/80157730252.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=derivatives+calculus+exercises+pdfPDF 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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