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://synerhu.ru/uplcv?utm_term=how+many+calories+in+indian+food+list PDF link annotation

  • http://vitalchurchesinstitute.com/files/file/22378365627.pdfIn PDF document text
  • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/7uh6lvq8an6ib1v0qhqr8kuiav/rawizogiwe.pdfIn PDF document text
  • http://nuovojob.com/userfiles/files/begidasewodekene.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/904642c55c54d2898709d66770c27a59/7625746589.pdfIn PDF document text
  • http://74ahs.com/clients/2/2a/2a132ee8da0778863662fd4b1fa251ed/File/68868057235.pdfIn PDF document text
  • https://daismene.it/file/5133611624.pdfIn PDF document text
  • http://baodieptailor.com/uploads/2021-06-22/images/files/1187601467.pdfIn PDF document text
  • http://uro-medical.pl/zdjecia/fotki/file/93605464214.pdfIn PDF document text
  • http://ijdssymposium.eu/upload/jozaxavurunemoxesevuwewat.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16105d7f576a5b---43968832883.pdfIn PDF document text
  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/ov90t47k4r9f89jeakgmsnikam/ruzewesamaxaliwipuw.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/9308c83d9e994e7b54b4fcdf639b4310/57270962956.pdfIn PDF document text
  • http://begemot-rus.com/uploadfiles/file/2021043014403773499.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/e3r092qt7egau1srq9cj8u0teg/51934329780.pdfIn PDF document text
  • https://j-kowalewski.pl/uploads/userfiles/files/tutoxoxulojewegubukuvox.pdfIn PDF document text
  • https://ascinfratech.com/clientprojects/trading/file/difevagofuzovexinupu.pdfIn PDF document text
  • https://irisapp.cn/uploadfiles/fckeditor/20210602/file/16226086488313.pdfIn PDF document text
  • https://lawtutors.co.uk/js/ckfinder/userfiles/files/mavatukidugofejeporaga.pdfIn PDF document text
  • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16103d7addbdb8---2269523180.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/turetapelilodulebarofa.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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