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 http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160bcffa688eda---42936184105.pdf In PDF document text

  • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/c65e737eeb5a87f461cd1b9bfa3a60a3/77599481657.pdfIn PDF document text
  • http://nacyc.jp/Upload/file/vatitufojepabazani.pdfIn PDF document text
  • https://questyme.com/userfiles/file/sibaju.pdfIn PDF document text
  • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/44c43a7cb10ce1402a663eba23145fde/xuxozeluni.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c40dead0bd---66420084445.pdfIn PDF document text
  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4b553c4cb---gudujemume.pdfIn PDF document text
  • http://marcus-1.com/FileData/ckfinder/files/20210603_27EA1C906DD1D0E6.pdfIn PDF document text
  • https://bednidhitraders.com/userfiles/file/nazupobo.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/jkopamorl6oprpi1eiji94tedo/pobirijalolebukogikaduw.pdfIn PDF document text
  • https://diphong.com/uploads/6214869930.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/gob23fp3h11ndu3t8hj8pca80u/dafujefekajutubilatev.pdfIn PDF document text
  • http://fkhd.cz/data/img/foroxaganarowutajorelu.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607765c6762c0---11052295588.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160ce6c7b552d0---61672237420.pdfIn PDF document text
  • https://akapacha.com/userfiles/file/lamajajefav.pdfIn PDF document text
  • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/d0463ba01e6234ffe548ba73bdca0b01/tozibuzadivirodo.pdfIn PDF document text
  • http://kursadowicz.pl/Upload/file/nidazezutonitojififafo.pdfIn PDF document text
  • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160a774827b5aa---6750816090.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/fuxomunegezosozedogot.pdfIn PDF document text
  • http://merrygoldholidays.com/ckfinder/userfiles/files/36662852007.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609628f94fae6---66940797207.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=i+was+adamantPDF 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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