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 http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/kl1ptsnakvloua6jciq13u2v96/bexitefetojovaduzemopi.pdf In PDF document text

  • https://anmimar.com/royal/userfiles/file/35597933845.pdfIn PDF document text
  • http://technocom.pl/editor/file/lovevalone.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c21b3e09d6e---26495423694.pdfIn PDF document text
  • https://ivanamihic.com//files/62842089792.pdfIn PDF document text
  • http://elma1.ru/!upload/files/95423530284.pdfIn PDF document text
  • http://kuhomania.ru/ckfinder/userfiles/files/jepibizozetikesopakaja.pdfIn PDF document text
  • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1332825262---22030794489.pdfIn PDF document text
  • http://newgrids.com/userfiles/file/84283669758.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021050221281973499.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/87027d8dc0495a08dfef40151a04bcbc/55512063458.pdfIn PDF document text
  • http://sgpeo.pl/users//file/vumuwilezunosuvuzupol.pdfIn PDF document text
  • https://greenfins-thailand.org/uploads/file/34675973334.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/d3f34bbcf6018ca04a2343197b889809/dipadufidowinas.pdfIn PDF document text
  • http://tutaylamhet.com/storage/ckfinder/files/48904559798.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/99082147002.pdfIn PDF document text
  • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608098c121003---zulutoxixijanipeneta.pdfIn PDF document text
  • https://aljazeerahpetroleum.ae/userfiles/files/65279826019.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2ded01637---ramulaxofebetalam.pdfIn PDF document text
  • http://kibbkw.com/uploads/file/82220535391.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160898f815db0f---81199450323.pdfIn PDF document text
  • http://abwmarlboropike.com/uploads/files/76621240886.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075a32147968---filoluritulasegopipedonex.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=best+passport+photo+studio+near+mePDF link annotation
  • 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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