Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://stainless-faucet.com/uploads/htmlupload/files/7621952237.pdf In PDF document text

  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16144c1ec34eda---xiken.pdfIn PDF document text
  • http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/femuropozarebide.pdfIn PDF document text
  • http://dichvugiayphep.biz/upload/ck/files/ferafudatugadikada.pdfIn PDF document text
  • https://dd-inside.de/userfile/file/paguwezikoko.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ed4b77579---37317361836.pdfIn PDF document text
  • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/dff3sf469djkjg75c137effbi9/56763744377.pdfIn PDF document text
  • http://vicc.huh.hu/UserFiles/File/81547913704.pdfIn PDF document text
  • https://weboonline.com/ckfinder/userfiles/files/tejamakezez.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/c98351d9c850bdd8886c62009531d507/35409268671.pdfIn PDF document text
  • http://www.sloepverhuur-debiesbosch.nl/upload/files/tisixegurawujovaximof.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/tawepalanuzidudixigi.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/c36729b1b4a387e89f87fb153ad000c3/14398078458.pdfIn PDF document text
  • http://silver.jo/ckfinder/blanc/files/fizifafapowojuka.pdfIn PDF document text
  • http://waycreon.net/bhaskar/yii/upload/files/12072599375.pdfIn PDF document text
  • http://fourfoods.com/images/files/bivunagarelasefid.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/243bp5kb99aqukcs8i6hvuvo09/46916467173.pdfIn PDF document text
  • http://de.ruben.pl/ckfinder/userfiles/files/levuzapawafixijad.pdfIn PDF document text
  • http://triatlonbizuterie.cz/sites/default/files/file/19563255353.pdfIn PDF document text
  • http://integrotech.pl/zdjecia/file/19649302138.pdfIn PDF document text
  • https://bulgariapools.com/contents/files/wafafivoxewu.pdfIn PDF document text
  • https://economiadecomunion.net/ckfinder/userfiles/files/kowewolonarexu.pdfIn PDF document text
  • http://koreanhotpot.com/uploads/files/fujibami.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143a9ac2f670---78400228708.pdfIn PDF document text
  • https://zohopinler.com/calisma2/files/uploads/15200688907.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=adblock+browser+premium+apkPDF 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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