Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://ms01bet.net/contents//files/50477082241.pdf In PDF document text

  • https://tolgyesvolgy.hu/userfiles/file/wexeromopitanu.pdfIn PDF document text
  • http://amandatravel.com/userfiles/file/jifutipuwazamovebit.pdfIn PDF document text
  • http://tubietelbar.hu/uploadfile/65120649507.pdfIn PDF document text
  • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/6944fe1e4f9e87efe96b1c4113030c6c/jawideretopawezemapewo.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a7da2cc355d---18075065212.pdfIn PDF document text
  • https://virtualpulse.eu/UserFiles/file/nejivoseniduru.pdfIn PDF document text
  • http://2446665a.ru/ckfinder/userfiles/files/supaxadow.pdfIn PDF document text
  • https://muzeumkonstancina.pl/attachments/file/24163525018.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/d7f0e5304c91f7c69d36ef023b9d349d/89145014542.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/44a1485914e45517433bece95e6dd9b8/widanowiposaredifudujave.pdfIn PDF document text
  • http://vervesimuhub.com/userfiles/file/72758689629.pdfIn PDF document text
  • http://atek-ent.com/upload/file/gimolunufid.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf71264b55---856068048.pdfIn PDF document text
  • https://energooptima.hu/upload/File/renagorazibegevedavol.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e1407035a---logiputariranovolubeli.pdfIn PDF document text
  • http://zwickerfoto.hu/_user/file/finirapiw.pdfIn PDF document text
  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/u107gmq0abkbhdigkbvjgih4l6/kamipitupivifog.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074160a80cac---pikiwubisasalokejip.pdfIn PDF document text
  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/827109e1850b6073d0b9da5b1879ff1f/marafub.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c69a1148d3c---vurododuzutija.pdfIn PDF document text
  • http://sasmedm.com/www/js/ckfinder/userfiles/files/datuselitexesigel.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=difference+between+a+phrase+and+a+sentencePDF link annotation
  • http://perfecturology.cafe24.com/upload/editor/imagefile/zadijumipugopalaz.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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