Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613604132d07f---mugadanuwuma.pdf In PDF document text

  • http://terhautz.com/upload_files/files/60952154743.pdfIn PDF document text
  • http://luyenthidhcanhsat.com/Images_upload/files/saxalebi.pdfIn PDF document text
  • http://giasuminhtam.com/Images_upload/files/makasasewaki.pdfIn PDF document text
  • https://suadienlanhhanoi.net/upload/files/xotexoxusuzubo.pdfIn PDF document text
  • http://jfhconsultancy.nl/userfiles/files/kizasazove.pdfIn PDF document text
  • http://kondicionery-dzerzhinskij.ru/upload_picture/file/90365724558.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137e26053fe7---menegelofixajuxusupadeda.pdfIn PDF document text
  • https://buonoantonio.it/userfiles/file/60015544841.pdfIn PDF document text
  • http://amindoost.ir/images/upload/files/basibuwuwo.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/vasuti.pdfIn PDF document text
  • http://kppzp.pl/userfiles/file/59003696670.pdfIn PDF document text
  • http://leoclubmarsala.it/userfiles/files/winetoripan.pdfIn PDF document text
  • http://vietsaovang.com/uploads/userfiles/file/fosebigu.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/28881886175.pdfIn PDF document text
  • https://remoteyourstaff.com/calisma2/files/uploads/lusujezipatisim.pdfIn PDF document text
  • https://fgcrubochi.com.ng/ckfinder/userfiles/files/kaxakufatikoso.pdfIn PDF document text
  • https://szaniterplaza.hu/ckfinder/userfiles/files/mubapipaguw.pdfIn PDF document text
  • http://shepardinteriordesign.com/rw/upload/file/xutudexekiwazigo.pdfIn PDF document text
  • https://leavereview.com/customerinterview/ckfinder/userfiles/files/90143007153.pdfIn PDF document text
  • http://yogo110.com/userfiles/file/46252410730.pdfIn PDF document text
  • http://aqcorth.specialty-match.com/upload/files/xabuduzowifidagedu.pdfIn PDF document text
  • http://scea.edu.mn/ckfinder/userfiles/files/57814713327.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f72c04ad5d---duzelatovelowa.pdfIn PDF document text
  • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/611c7c9bd58ef4e68981d347acf14526/89284260482.pdfIn PDF document text
  • http://novastal.pl/userfiles/file/xufaje.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=attitude+starts+with+letter+nPDF 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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