Malicious PDF — malware analysis report

Heuristics 5

• 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://infrive.ru/uplcv?utm_term=gender+inequality+in+relationships PDF link annotation

  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/941gtqsomhjj5kh84an90hf50r/53991655447.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bc4589b36bc---48392073921.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/735a332cd13344cf88a65ff45ed03600/24075766927.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9471eb43e---42531016117.pdfIn PDF document text
  • http://anhuizhkj.com/upload_fck/file/2021-6-11/20210611102517749764.pdfIn PDF document text
  • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7e96ad51f---7495979371.pdfIn PDF document text
  • https://itracmediav5.com/ckfinder/userfiles/files/72358967079.pdfIn PDF document text
  • http://paillasse.hu/userfiles/file/dutufenagijiduwapinomovif.pdfIn PDF document text
  • http://rocincorporated.com/domain.com/images/dynamic_pages/file/49666610117.pdfIn PDF document text
  • http://iccj.jp/images/uploads/fckeditor/file/dawidosekadokawudomufo.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/mikoxapo.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a663864d000---govivezavitiwawejiluxedek.pdfIn PDF document text
  • https://badrivishal.com/media/jeneludeme.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/54d7nc7lle3lamsk9s6jck8f48/43365569630.pdfIn PDF document text
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/0f8fa94be449aea3519c98582a634ae9/77395147187.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e874d3b246e---kapuzerebe.pdfIn PDF document text
  • http://shortguycentral.com/ck_uploads/files/verupaperamejogam.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee76a00d34---91236837086.pdfIn PDF document text
  • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/ast4ncrb5l97d4lhihlsi1j4l6/76380312996.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/f5c5f0e58b457b8c098fb9f47ebff2c3/59293920708.pdfIn PDF document text
  • https://riwg.in/userfiles/file/69239991734.pdfIn PDF document text
  • http://mhspartan79.com/clients/9/97/97d0d0788ec4d6723ba7be3cd58769e3/File/48958025681.pdfIn PDF document text
  • http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/sezonadugapudokodunapod.pdfIn PDF document text
  • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084b8622616b---66417795836.pdfIn PDF document text
  • http://strahovka66.ru/userfiles/file/govosojisawotuwilup.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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