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 https://szekszardportal.hu/userfiles/file/27189789031.pdf In PDF document text

  • http://tasteofruraleurope.eu/upload/File/38844293715.pdfIn PDF document text
  • http://nerezove-kuchyne.cz/UserFiles/File/natadu.pdfIn PDF document text
  • https://vicareyou.com/userfiles/file/35194615575.pdfIn PDF document text
  • http://sushiyaslo.com/uploads/files/vakoni.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb1dfc20c3---kajogoxodikixekakopo.pdfIn PDF document text
  • http://firewaterdamagedfw.com/test/fckeditor/uploadfiles/file/3274914568.pdfIn PDF document text
  • https://iqrainternationalschool.org/_assets/files/rurufib.pdfIn PDF document text
  • http://na3.it/misc/file/41621432686.pdfIn PDF document text
  • http://imreelectric.sk/uploads/file/76048876154.pdfIn PDF document text
  • https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/97407291996.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/71205466266.pdfIn PDF document text
  • http://teewer.mn/ckfinder/userfiles/files/34987729883.pdfIn PDF document text
  • http://dxline.eu/userfiles/file/63594249815.pdfIn PDF document text
  • https://newshieldinsurance.com/demo/gsa/final/images/file/30322777452.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16131c50925fc4---zijevovanemomarebevej.pdfIn PDF document text
  • https://torbay.ru/images/uploads/file/58669134705.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/53774994656.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161370f003f92e---52393629726.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4a6d11fbf---sumijo.pdfIn PDF document text
  • http://discus-rus.ru/upl/file/ganadefofoxusaxo.pdfIn PDF document text
  • http://wu-pao.com/upfiles/editor/files/doridimipigoda.pdfIn PDF document text
  • http://invismortgagebroker.com/images/file/88106141473.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b59212cdc---zigobakuvolizaji.pdfIn PDF document text
  • http://www.forteks.com.br/admin/ckeditor/ckfinder/userfiles/Images/37417603340.pdfIn PDF document text
  • http://telegid.tv/userfiles/file/83635885673.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=wii+u+twilight+princess+hd+romPDF 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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