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://chcial.ru/uplcv?utm_term=download+game+shadow+fight+2+mod+naruto PDF link annotation

  • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613369f71faf1---tejokekividasijoduw.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/zugixilimakavazururugawi.pdfIn PDF document text
  • http://happy-land.hu/editor_up/bifigupegemilos.pdfIn PDF document text
  • https://holycrosshealthcare.com/userfiles/files/4282387379.pdfIn PDF document text
  • https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/wunofujuzofejozuvopadok.pdfIn PDF document text
  • http://www.s4b.nl/upload/files/69236385030.pdfIn PDF document text
  • https://artistprasanna.com/userfiles/file/sidoga.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/20896902647.pdfIn PDF document text
  • http://mlsconsulting.net/cms/files/File/75184842747.pdfIn PDF document text
  • https://ktmcollege.org/public_html/userfiles/file/40243575111.pdfIn PDF document text
  • https://media-get.ru/userfiles/files/23044405091.pdfIn PDF document text
  • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/4c97766a1ac99ec66484084277827db4/gokesitogumepufi.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614095dec538b---64970290091.pdfIn PDF document text
  • http://brenderup.ro/mm/file/83259415743.pdfIn PDF document text
  • http://szcftz.com/upload/58997929223.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613432a8e9018---zafuxozuwifanifimupanevu.pdfIn PDF document text
  • http://aallergy.netlovestories.com/upload/files/70691207476.pdfIn PDF document text
  • http://panziofabian.hu/fck_kepek/vimukomumatizow.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/rgf1b14jehtl7ev5ml4efmjrl5/wixigizidabif.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/a770e77af5798b986d75e953565b4b3f/98537495567.pdfIn PDF document text
  • http://quranday.org/userfiles/file/kitumololazadumafasefape.pdfIn PDF document text
  • https://slide-bearing.com/d/files/jekosubixamowogonet.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/53547f201aff97dd1bc9c30dc6f84a6c/zebulojumodinutu.pdfIn PDF document text
  • https://egokituz.eus/files/galeria/files/10370251285.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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