Malicious PDF — malware analysis report

Heuristics 6

• 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://catamma.ru/uplcv?utm_term=dog+body+parts+worksheet PDF link annotation

  • https://bakwanudang.com/contents/files/11169353845.pdfIn PDF document text
  • http://deckdreams.com/clients/3/34/34055ef41782f8f15ebf372c1e39ecad/File/99054243068.pdfIn PDF document text
  • http://ilovehikari.com/uploads/files/wuximuz.pdfIn PDF document text
  • https://psg66.ru/admin/ckfinder/userfiles/files/33646009927.pdfIn PDF document text
  • http://cbcom.fr/ressource/site-image/files/85959009946.pdfIn PDF document text
  • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080edb5977e3---gavafivenifexuvudabomupab.pdfIn PDF document text
  • http://lamorenj.com/userfiles/files/16384206740.pdfIn PDF document text
  • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/8de2pq1csupr390hepi8cmfao8/galisutepuxifukini.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a9124d0f5---xuremapukadusoraf.pdfIn PDF document text
  • http://khonggianmang.com/upload/files/47829776905.pdfIn PDF document text
  • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/kp6b4dte9c1qgd4nha4ju51ire/95762338887.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa88f7cf262---18385534020.pdfIn PDF document text
  • http://tunesistudio.eu/userfiles/files/judeduluwimaruvozalunat.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1609a583b975ed---jomaxusijugisadedukusod.pdfIn PDF document text
  • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/634860ad718787b69697013deef93f24/21347455523.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/141e9e043830ed128ed5332237d09fe0/31853605231.pdfIn PDF document text
  • https://wolfgang-photography.com/userfiles/files/dimuguzilotilifef.pdfIn PDF document text
  • http://diysmart.net/userfiles/file/medirivurajobigawax.pdfIn PDF document text
  • http://ccymgr.com/clients/a/ab/abc9983c1712fd324c9320bcfcf975a8/File/36715060276.pdfIn PDF document text
  • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/5ece46d6632f6cd41393c026301f607b/vofiworawo.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/l4f43m18b0edtkd2ke87krm872/90690970051.pdfIn PDF document text
  • http://scro.ru/pic/file/foguvavef.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/0c338k1g65v5ae7es01vnfdjoo/sakalenadalomafux.pdfIn PDF document text
  • https://www.thaiahpa.com/flash/files/vugosopixato.pdfIn PDF document text
  • https://bloomlight.pl/_bloom/file/lexolixefumukerevor.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16094bc5c358cf---jigejoguguwazoda.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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