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://irlanc.ru/uplcv?utm_term=common+grammatical+mistakes+in+english+pdf PDF link annotation

  • http://xn--om2b25zm6igqb.com/ckupload/files/rebave.pdfIn PDF document text
  • http://zlzljc.com/uploadfile/file///2021081912341977.pdfIn PDF document text
  • https://artofsurfing.com/preview/ckfinder/userfiles/files/41148068597.pdfIn PDF document text
  • https://luyenthitoeic.info/userfiles/file/mesebipuruvesuguwix.pdfIn PDF document text
  • http://f-kcc.jp/user_data/userfiles/files/tasapexupojuvizimuxa.pdfIn PDF document text
  • http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/dbc1e6a4b2663ee66673fc4c5b4e4f15/75106118363.pdfIn PDF document text
  • http://piqiso.ru/userfiles/file/kajidarabirajemevabuzoj.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c1c5175e4---941789071.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/3rh2gon02hgkehu765v68jgpcb/basaluxokofip.pdfIn PDF document text
  • https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/201e8d176970fd0a607520af231a23f2/subusovofobugu.pdfIn PDF document text
  • http://adbuffalony.com/uploads/files/momulamiditeribewomupo.pdfIn PDF document text
  • https://apoiotelecom.com/imagens/img_fckeditor/file/22236397124.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16114a216ddd13---sugasutijomi.pdfIn PDF document text
  • http://otelm4b.ru/admin/ckfinder/userfiles/files/82006507524.pdfIn PDF document text
  • http://s-box.biz/upload/datoteke/72442301846.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b45bc86a779---jelejixilozidivudojoveti.pdfIn PDF document text
  • http://fixafilm.se/userfiles/file/xetuseveva.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a434663c91---wedunifobutu.pdfIn PDF document text
  • http://accessiblevehicleservices.com/userfiles/file/70922111701.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161320cbcedeb6---nurizukob.pdfIn PDF document text
  • https://xn--80aaijzh9b.xn--90ae/documents/file/xopuzipiwux.pdfIn PDF document text
  • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/o0ppbvfjcfrvhfkefrmaj12rvf/53265023740.pdfIn PDF document text
  • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16082440fe74ab---62692490510.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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