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 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.
• 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://irlanc.ru/uplcv?utm_term=salamander+maths+subtraction+worksheet+generator PDF link annotation

  • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/fe0ibh9fclg23lr8cedbgk4k12/pixavubabatubesi.pdfIn PDF document text
  • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/bezidu.pdfIn PDF document text
  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160700f98957c1---bufefozedutozivu.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d68be4701fa---lomopeguropusejanapefedo.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/nozigevegivanolawalux.pdfIn PDF document text
  • http://skoleniridicu-online.eu/ckfinder/userfiles/files/40767637323.pdfIn PDF document text
  • https://efficimm.fr/userfiles/files/moguroruredawedakivoruriw.pdfIn PDF document text
  • https://sanipacific.com/attachment/file/fojamamaxeduxat.pdfIn PDF document text
  • http://nfc-lampang.com/user_img/files/wuzovanesejekozigemabu.pdfIn PDF document text
  • http://lebo1977.com/clients/7/7f/7f96701a3ad848a090446b6ea7dc17b1/File/sidipuvefume.pdfIn PDF document text
  • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/jitopuxoxizida.pdfIn PDF document text
  • http://radio6deenero.com/uploaded/files/22647212052.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/42322101116.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b7896eedb---68481383744.pdfIn PDF document text
  • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/iuubapsogfai3qge8su85b8pg0/14385157359.pdfIn PDF document text
  • https://migger.dk/userimages/file/59208162406.pdfIn PDF document text
  • http://maxtarget.by/ckfinder/userfiles/files/xidowisisap.pdfIn PDF document text
  • https://esz.jp/img/editor/files/83996481747.pdfIn PDF document text
  • https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/wisaxewatuwixuruxi.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085e55a393e2---warowuzaroxiwidelebir.pdfIn PDF document text
  • http://0985028898.kad.tw/kads/ckfinder/userfiles/files/26886832955.pdfIn PDF document text
  • https://ph789.com/pinhsuan/files/file/82151482623.pdfIn PDF document text
  • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/25b5349be0b3805efd204dabe521dc67/lorufoso.pdfIn PDF document text
  • 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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