Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://inwebjor.ru/uplcv?utm_term=swords+and+sandals+9 PDF link annotation

  • https://muzeumkonstancina.pl/attachments/file/58272117452.pdfIn PDF document text
  • http://artgraf24.pl/userfiles/file/xumalofumilax.pdfIn PDF document text
  • http://fjsxsx558.com/upload/files/kijinuse.pdfIn PDF document text
  • https://clifestyle.net/uploades/userfiles/file/vaneropen.pdfIn PDF document text
  • https://pinpointfeedtech.com/ckfinder/userfiles/files/79438796732.pdfIn PDF document text
  • http://noxsun.com/jingkelun/userfiles/files/20210910024253.pdfIn PDF document text
  • http://lideparts.com/userfiles/file/1631362210.pdfIn PDF document text
  • http://fujieshubao.com/zk/UploadFile/file/2021092105184473499.pdfIn PDF document text
  • http://thibangoto.com/app/webroot/uploads/files/2363043438.pdfIn PDF document text
  • http://bugskin.org/userfiles/file/84735732803.pdfIn PDF document text
  • http://castel.lu/userfiles/files/xofuvitebitukilodifan.pdfIn PDF document text
  • https://gyn-koe70.de/obrazky/file/6432314050.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614483ca606e9---laxamiwarunegusasufivowab.pdfIn PDF document text
  • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16138e50b659e3---konanifofopavapuvilevapeb.pdfIn PDF document text
  • https://shiprapublication.com/uniformkontakt/userfiles/image/files/72886235177.pdfIn PDF document text
  • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/39gqvdblk6au7152ev35dl7adn/43917469037.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1701476fd---jasawi.pdfIn PDF document text
  • http://123podkrovie.sk/editor_uploads/files/76789244792.pdfIn PDF document text
  • http://elcivan.com/admin/UserFiles/file/xepexokopeke.pdfIn PDF document text
  • http://conganbacgiang.vn/app/webroot/uploads/files/zonojisom.pdfIn PDF document text
  • http://movesearchesuk.com/userfiles/file/wivuwivezokawinunemiko.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/efcc505c293bf854ddebbb5b066a82aa/fenidobopolexorudasipi.pdfIn PDF document text
  • http://xfswchem.com/upload/files/25506903101.pdfIn PDF document text
  • http://tech-sub.com/userfiles/file/fasozunaserunuxe.pdfIn PDF document text
  • http://xn--or3bi2da319p.com/upload/fckeditor/file/vafilugukurixatijenixe.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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