Malicious PDF — malware analysis report

Heuristics 8

• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16139a3565ee3e---65169627936.pdf In PDF document text

  • http://goldsunjsc.com/upload/files/6641622987.pdfIn PDF document text
  • https://doctmcooper.com/userfiles/files/rodawupofizadugovozake.pdfIn PDF document text
  • https://parkettworld.com/upload/files/93815663986.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3185e32a95d1b176af3b46fb8537d55d/derorejarutinegusevuwu.pdfIn PDF document text
  • http://yourhealthyanswer.com/ckfinder/userfiles/files/40423549752.pdfIn PDF document text
  • http://weingut-suppan.at/files/23509122695.pdfIn PDF document text
  • http://adriennemason.com/assets/files/95879641019.pdfIn PDF document text
  • http://anindecor.pl/files/file/77311471131.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1612f198e7d45a---69134127554.pdfIn PDF document text
  • http://avatars.ru/userfiles/file/lulewasatabalarapesidof.pdfIn PDF document text
  • https://www.geya99.com/ckfinder/userfiles/files/mafuletaboxefodel.pdfIn PDF document text
  • http://angel-conference.org/upload_fck/file/2021-9-4/20210904033036868275.pdfIn PDF document text
  • http://yokohama-model.com/userfiles/files/nalenawixo.pdfIn PDF document text
  • https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/76564183342.pdfIn PDF document text
  • https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/zomoviwe.pdfIn PDF document text
  • https://labelmarket.pl/data/file/83447998110.pdfIn PDF document text
  • http://sergeisurzhin.ru/ckfinder/userfiles/files/69342600480.pdfIn PDF document text
  • https://hefcom-hydraulics.com/ckfinder/userfiles/files/vuziturogixixo.pdfIn PDF document text
  • https://rdsdealers.com/ckfinder/userfiles/files/wulola.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b3c32bbd8---58527387613.pdfIn PDF document text
  • https://medpressa.ru/files/file/578111115.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161359052ae298---lagopobapowubodeme.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+play+god+of+war+4+on+androidPDF 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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