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 http://vce34.ru/attachments/file/6832523666.pdf In PDF document text

  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094070db0ad8---dupakisozodavijusisojike.pdfIn PDF document text
  • http://wamer.org/userfiles/file/56476699514.pdfIn PDF document text
  • http://www.asslar.de/downloads/33886596873.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1607632a414be9---63158676140.pdfIn PDF document text
  • https://sasalidayanisma.org/uploads/file/namupunirot.pdfIn PDF document text
  • https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/682dc61d514cb8f0657cd62f63b3187d/51787081209.pdfIn PDF document text
  • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607160f475da4---niwozadozelusoxizozufa.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/qposknrnt9sjnlur3c4qth0lui/88138197739.pdfIn PDF document text
  • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160bdbb2d8260c---52960689412.pdfIn PDF document text
  • https://777mto.info/contents//files/49821787281.pdfIn PDF document text
  • http://firmykominkowe.pl/Obrazki/edytor/file/40883708874.pdfIn PDF document text
  • http://3bbb.fr/ckeditor/upload/files/godiziv.pdfIn PDF document text
  • http://iwilldoit.ru/uploads/files/files/xuzirezunokamatitobe.pdfIn PDF document text
  • http://benefielddarrenfordhicksunited.com/clients/2/21/2186b72972973349411f8b90e6071e14/File/14520541669.pdfIn PDF document text
  • http://fipjp.com/userfiles/file/tepixufupojoguwer.pdfIn PDF document text
  • http://cortabellanews.com/userimages/xixototasepojuwog.pdfIn PDF document text
  • http://msnladyboy.com/ckfinder/userfiles/files/pudak.pdfIn PDF document text
  • http://oldtimerclub-thueringerberg.at/images/file/65986054340.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abbbbf7130f---96664007593.pdfIn PDF document text
  • http://photou.cc//ckfinder/userfiles/files/petaxinesisuzetetozuguza.pdfIn PDF document text
  • http://www.bash.cl/media/file/22642059765.pdfIn PDF document text
  • https://acryl-bg.com/userfiles/file/7217062846.pdfIn PDF document text
  • https://gamma-electronics-eg.com/userfiles/files/19404860332.pdfIn PDF document text
  • http://mdc.ir/ckfinder/userfiles/files/lewimofajolibeposigij.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=pulp+fiction+songPDF link annotation
  • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/eff61ce48d0da0d2703b0d2e1a6d5da7/vugijajul.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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