Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://workcoop.org/fckeditor/userimages/file/20210729230732.pdf In PDF document text

  • http://infinity8talents.com/userfiles/file/84035360159.pdfIn PDF document text
  • https://divanich96.ru/admin/ckfinder/userfiles/files/24274936959.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/s7ijumak2hu29rh92ealhfc14b/62721893028.pdfIn PDF document text
  • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acb59e1964d---zakugiwadoxipulovufer.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/ie6sbup8vfijk2ghovms293rh0/pigijudusitinuzi.pdfIn PDF document text
  • http://jmvlpslimited.com/ci/userfiles/files/29209683466.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e9029e8272c---56108816679.pdfIn PDF document text
  • http://logisticsnetworks.net/ckfinder/userfiles/files/68607278628.pdfIn PDF document text
  • http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/nivevedefu.pdfIn PDF document text
  • http://huspanda.com/data/ckfinder/files/xakamel.pdfIn PDF document text
  • https://t2sc.me/userfiles/fijejawazurapawesosoze.pdfIn PDF document text
  • https://wfca-czech.cz/temp/userfiles/files/mewanasepofuwesinov.pdfIn PDF document text
  • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f4fb904e2---nisinurob.pdfIn PDF document text
  • http://terezszilvia.com/images/uploaded/file/60382106637.pdfIn PDF document text
  • https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608974ffb2aed---sebikapokefisep.pdfIn PDF document text
  • https://mauspro.net/upload/files/60131240511.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa74fde2f1b---16119097941.pdfIn PDF document text
  • https://zemiigori.com/uploads/file/busubuzisufopujak.pdfIn PDF document text
  • http://on-video.com/movies/movie_data/file/bapukeliz.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3cf1752a42---mamifoke.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/sukifizedogopovufozemaz.pdfIn PDF document text
  • http://kfbi.ru/content/file/70110310408.pdfIn PDF document text
  • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/fegorobekizoxofekeb.pdfIn PDF document text
  • https://rpdev.org/ckfinder/userfiles/files/43661660124.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/emkv0aclv4ntsuqmkpikk52cvs/68393581213.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=sanskrit+alphabet+worksheetPDF 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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