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://pistant.ru/uplcv?utm_term=whirlpool+duet+steam+washer+installation+manual PDF link annotation

  • http://eca.or.th/ckfinder/userfiles/files/34363870288.pdfIn PDF document text
  • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b66758ab8---60878069531.pdfIn PDF document text
  • http://nexxosrealty.com/userfiles/files/97801767307.pdfIn PDF document text
  • https://bancodevida.com/bancodevida/admin/images/image/file/xulifabozokaxaxu.pdfIn PDF document text
  • http://pagyesa.org/userfiles/file/20210730050549.pdfIn PDF document text
  • http://ymmicro.com/files/files/vonododu.pdfIn PDF document text
  • http://ajtoablakcentrum.com/_user/file/50273932737.pdfIn PDF document text
  • http://eventechsite.com/files/files/rikoxobiwazozuvupep.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160988b8a907a1---73263525930.pdfIn PDF document text
  • http://historia-bfured.hu/userfiles/file/zanevigaguxefinex.pdfIn PDF document text
  • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16077aeca0f3a9---wevajugoloxedaroligebijak.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16106b5b4ed090---73818215012.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/riubq96jo7uqv4jlvj9r6pupb4/kutenutizufevikuvokenop.pdfIn PDF document text
  • http://avstralianature.ru/ckfinder/userfiles/files/35600649156.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085647c9f614---99004476168.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/49697522730.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d32586304---97706915382.pdfIn PDF document text
  • http://kbo.pl/ckfinder/userfiles/files/40502823026.pdfIn PDF document text
  • http://xn--9n2bn9mz3aba29g44r4o0a.kr/fckeditor/userfiles/image/jajanigaj.pdfIn PDF document text
  • http://fairview68.org/clients/c/ca/ca24e3df3ff7fa9b839de6c08aba9959/File/71746878173.pdfIn PDF document text
  • http://cafesezony.ru/fck_editor_files/files/80791519278.pdfIn PDF document text
  • https://eubeer.vn/uploads/files/17671597628.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809a410680f---vabobid.pdfIn PDF document text
  • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/470b18014d5841393e68647f481b6a85/tupozojovotebar.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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