Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://nomylo.ru/uplcv?utm_term=revisi%C3%B3n+documental+definicion+pdf PDF link annotation

  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b613b81f76d---wezorijovitimidabe.pdfIn PDF document text
  • https://doitoutdoorz.com/file/N9wMRetEYku9jr60.pdfIn PDF document text
  • https://maria-galland.ru/files/file/genisawedekajisimiziro.pdfIn PDF document text
  • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/6b7043d929feba4e50c9ea7642c38857/ronire.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/615cca4cff341c654f856bda052eb82a/93519780465.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-5-21/20210521001205723463.pdfIn PDF document text
  • http://zuche0551.com/upload/file/fogaburulamoxezuzovib.pdfIn PDF document text
  • http://szamosiszerviz.hu/feltoltott/files/sisudag.pdfIn PDF document text
  • https://banghenails.com/upload/file/wodofofotibuwosesaxaba.pdfIn PDF document text
  • http://amouage-salon.ru/admin/ckfinder/userfiles/files/82209858149.pdfIn PDF document text
  • http://snap-drone.com/userfiles/file/suposaj.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/o2amhh4bdo0mml95gfbi6avh65/podufi.pdfIn PDF document text
  • http://greenhousehotel.vn/uploads/image/files/jolevelesovaliruwuvizi.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d630820730---60275963663.pdfIn PDF document text
  • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160e92d2ada2e5---tajazemudi.pdfIn PDF document text
  • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e0ebacc7d---kodokimudafenegiwen.pdfIn PDF document text
  • http://samtekelektrik.com/files/11069432299.pdfIn PDF document text
  • https://hankilfood.com/upfile/files/11544890620.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/36010072598.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/19483547312.pdfIn PDF document text
  • http://podolsk-kondicionery.ru/upload_picture/file/wonirufuwi.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/01ab9279ebb4f1ccbc5e117021e13372/tutujekakimepakedukiseru.pdfIn PDF document text
  • http://edanieltour.com/FileData/ckfinder/files/20210801_CD0C1ED70D87C1A8.pdfIn PDF document text
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/12f0b4ec8a79562f3e95fd14cac26d77/89134257557.pdfIn PDF document text
  • http://wsp.pl/userfiles/file/poditobimopipix.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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