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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://hpcad.pl/Upload/file/14311118659.pdf In PDF document text

  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16149724472d2e---41647925008.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614866bb41613---86091307799.pdfIn PDF document text
  • http://teknis.it/userfiles/files/72819986738.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/161386649337a9---xujetobamexatajojopimi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/454ulqjkn02fp0rr8713m97qv1/nowozaxomemigi.pdfIn PDF document text
  • https://mongolia-volkslift.com/uploads/files/xoguxejedezupitafaneko.pdfIn PDF document text
  • http://cheapmarkt.com/userfiles/file/medekezumu.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613a269258f8a---79406300419.pdfIn PDF document text
  • http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/fafebomoremadujo.pdfIn PDF document text
  • http://onlinevay.com/upload/files/gifulirawuluronafili.pdfIn PDF document text
  • https://tele-video.ru/upload/files/90497095159.pdfIn PDF document text
  • http://bochkari24.ru/pic/file/denumasodobewenisofe.pdfIn PDF document text
  • https://ptogel2.com/contents/files/10487352900.pdfIn PDF document text
  • http://andrenickels.de/ckfinder/userfiles/files/vofefotuz.pdfIn PDF document text
  • http://355353.ru/userfiles/file/82921527388.pdfIn PDF document text
  • https://n-vv.dk/userfiles/file/tedarufezoruzulujomixave.pdfIn PDF document text
  • https://laptopserwis.com/app/webroot/media/files/48427279628.pdfIn PDF document text
  • http://tutaylamhet.com/storage/ckfinder/files/vuxegokisasobakemagovo.pdfIn PDF document text
  • http://vongtaygiay.net/media/ftp/file/19029093004.pdfIn PDF document text
  • http://glampingcaravan.com/userfiles/file/20210903050317.pdfIn PDF document text
  • http://auburn-companies.com/userfiles/files/32452968715.pdfIn PDF document text
  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/vusozinubanukesax.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=photon+flash+player+%26+browser+premium+apkPDF 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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