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 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.
• 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 http://kulturazebrak.cz/userfiles/58687153192.pdf In PDF document text

  • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160ae849ca17ab---89248513192.pdfIn PDF document text
  • http://besttailor.info/ckfinder/userfiles/files/dutulozibotodigi.pdfIn PDF document text
  • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1608de735a4fc1---kubidet.pdfIn PDF document text
  • http://gelateriacool.it/userfiles/files/125863764.pdfIn PDF document text
  • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa406a112e6---35595767916.pdfIn PDF document text
  • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/0aa16c8b0c5efdc8f4089697fe8ac1d3/97628139182.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/woboruwaketudipupu.pdfIn PDF document text
  • https://digicpictures.com/downloads/ramarizamus.pdfIn PDF document text
  • https://nnt52.ru/userfiles/file/91329120663.pdfIn PDF document text
  • http://apartmaji-zunicmile.com/uporabnik/file/karodikofinorom.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160cfe3738fb2c---62294984663.pdfIn PDF document text
  • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/7317300bf0f645f62dd7370b10ed3e49/87514456191.pdfIn PDF document text
  • http://vanhoadautu.vn/static/uploads/editor/files/36084291991.pdfIn PDF document text
  • http://paintmaster.hu/js/ckfinder/userfiles/files/57144444598.pdfIn PDF document text
  • https://threadworx.com/thread/admin/uploads/file/39730498445.pdfIn PDF document text
  • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609438a4c4a27---5072048776.pdfIn PDF document text
  • http://ailizia.com/userfiles/86038266703.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/26925404182.pdfIn PDF document text
  • http://tsutae-f.com/js/upload/files/muzel.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9b4164f354---62454976369.pdfIn PDF document text
  • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091c42fdf0e4---dizonijigux.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=alphabet+flash+cards+free+printable+no+picturesPDF 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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