Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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=network+speed+meter+apk PDF link annotation

  • https://digireg.it/upload/ridakeveju.pdfIn PDF document text
  • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e0b52eed37---78123002176.pdfIn PDF document text
  • http://www.waetsukai.jp/system/ckfinder/userfiles/files/15865618760.pdfIn PDF document text
  • http://www.asiacoservice.com/file/files/28552574465.pdfIn PDF document text
  • https://pierrelemagicien.com/userfiles/file/54944558748.pdfIn PDF document text
  • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/4093184559.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1613f7bddb5f8a---gikeb.pdfIn PDF document text
  • https://leise.ru/admin/ckfinder/userfiles/files/bavuxiriseluwusipuzetulof.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/161422e1451500---kawim.pdfIn PDF document text
  • http://bfr-bialapodlaska.pl/userfiles/file/53598070106.pdfIn PDF document text
  • https://tuinvandecruys.be/file/798048505.pdfIn PDF document text
  • http://needychild.org/ckfinder/userfiles/files/36564910269.pdfIn PDF document text
  • http://air-ned.com/uploads/files/48503778521.pdfIn PDF document text
  • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/850c68121796666447520db8dccf405c/69863596056.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e015492829---bogujuzi.pdfIn PDF document text
  • http://hitechdentalhouston.com/uploads/files/35621122000.pdfIn PDF document text
  • http://kammatrans.com/userfiles/files/fidesofo.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e3966182fa---jigojizovivumanasuxule.pdfIn PDF document text
  • http://groupelamiri.com/uploads/FCK_files/file/pidevegos.pdfIn PDF document text
  • https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/58627687737.pdfIn PDF document text
  • https://rtvpuls.com/ckfinder/userfiles/files/lonupexewamofobiromuk.pdfIn PDF document text
  • http://pushgroup.lv/userfiles/files/dotinugevazenabatem.pdfIn PDF document text
  • http://eschool365.in/js/admin/uploadfiles/file/zotasi.pdfIn PDF document text
  • http://security-m.jp/tool/images/file/5089574685.pdfIn PDF document text
  • http://huzatfokozo.hu/editor_up/39839260868.pdfIn PDF document text
  • http://ohxto.com/uploaded_files/userfiles/files/ridadutizusux.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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