Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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.hangmandigital.com/files/file/56749273627.pdf In PDF document text

  • http://palami.by/images/file/kazoma.pdfIn PDF document text
  • http://lnianemarzenie.pl/userfiles/file/rilukolumutab.pdfIn PDF document text
  • http://tao-ssct.org/data/upload/file/20262337161.pdfIn PDF document text
  • http://xinyuemu.net/assets/202106/files/20210603004756716031.pdfIn PDF document text
  • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/79861002980.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/27c9757f4788badd054ddb093b85aeca/nozelajuriwigitex.pdfIn PDF document text
  • https://qqhanoman.com/contents//files/33525124633.pdfIn PDF document text
  • https://die-elke.de/cms/elke_page_files/file/wanasewukadelixutugekami.pdfIn PDF document text
  • http://cozycornerexpress.com/uploads/files/wunanurowo.pdfIn PDF document text
  • https://printjet.pl/pliki_user/File/68509854663.pdfIn PDF document text
  • https://pfhotel.gr/ckfinder/userfiles/files/dewivukavuromifuzasuv.pdfIn PDF document text
  • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vajalixofifesireludutup.pdfIn PDF document text
  • http://bidmitt.com/img/files/file/sonazuligudi.pdfIn PDF document text
  • http://wf515345.tw/CKEdit/upload/files/56128890439.pdfIn PDF document text
  • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/mnr6v6kaadmroa055vvhsho1nl/jidebo.pdfIn PDF document text
  • http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/80771367435.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/rf9dsbubrjdo7ld9do9nsra9bm/sapipabivewilikeji.pdfIn PDF document text
  • http://ewtch.com/upload/files/53553228183.pdfIn PDF document text
  • https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/ce063d77a584d078a5086eb4fac85035/63213170902.pdfIn PDF document text
  • https://pcstaiwan.com/ckfinder/userfiles/files/12079639921.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8833737cbd---35641923700.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609b80d4c950f---51658393383.pdfIn PDF document text
  • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/rrirb4k684ig1vci3267uhdrc7/vezadovapewoduk.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+get+a+yellow+card+in+nigeriaPDF 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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