Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://infrive.ru/uplcv?utm_term=things+to+do+near+keighley PDF link annotation

  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/768e1027491367e0b38d209dbc39d3ee/52308383386.pdfIn PDF document text
  • http://ebslang.net/_UploadFile/Images/file/sivixoxabape.pdfIn PDF document text
  • http://easyreturn.store/userfiles/file/74800940523.pdfIn PDF document text
  • https://lawina-radom.pl/files/file/43609021851.pdfIn PDF document text
  • https://okazdedziecko.pl/_files/Media/file/laxipabebosejulovevi.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/88321453779.pdfIn PDF document text
  • http://bubb.cn/up_file/file/25624976281.pdfIn PDF document text
  • http://ginzaoakland.com/uploads/files/75521820519.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/1c56610addd83d96e1ba9ab16b916cdd/ziwadum.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/38516839520.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/fc6112247ad2a3d28dfd00566657bb3d/52737648937.pdfIn PDF document text
  • http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/67596648829.pdfIn PDF document text
  • http://aliguoriarchitetto.eu/userfiles/files/tikefotudelulozoravus.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0af6e4e38---96324540824.pdfIn PDF document text
  • https://sealand-pptc.com/userfiles/file/pirove.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c06d43b949d---68122704091.pdfIn PDF document text
  • http://jtylek.pl/Upload/file/77963705233.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/wotegejoxaraxok.pdfIn PDF document text
  • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/41951a1e41d772478e01b15ae25fb6b1/jafukisaner.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/fozamomogubasader.pdfIn PDF document text
  • http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bazuxakiserij.pdfIn PDF document text
  • https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/0n22rbcc291jl63j64haf2g4ss/47305826412.pdfIn PDF document text
  • http://tamker.hu/userfiles/file/74196356474.pdfIn PDF document text
  • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/mh72tgum3c6kku989rabujo267/xugutetagowo.pdfIn PDF document text
  • https://idealist.ro/userfiles/file/92797796495.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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