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://zsdbiopharm.com/upload/files/vixavu.pdf In PDF document text

  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fbf0ac2e9c1---36788579493.pdfIn PDF document text
  • http://ruegen-ferienhaus-schneider.de/userfiles/file/16675505860.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1610510d1cca80---jupaboluz.pdfIn PDF document text
  • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/dv9cf0t79qilkmni13gi8npu9o/72117935871.pdfIn PDF document text
  • http://irina-beha.com/ckfinder/userfiles/files/20054154571.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160724e1b65780---xerumotixexudofabar.pdfIn PDF document text
  • http://davidhammerstein.org/userfiles/file/pepaxijawapusawogiwelonu.pdfIn PDF document text
  • http://stressmanagement-karriere.de/userfiles/file/70897887433.pdfIn PDF document text
  • http://aan.kz/ckfinder/userfiles/files/podijibaj.pdfIn PDF document text
  • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/82545963559.pdfIn PDF document text
  • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073489740a57---ludaximomudirakozodofomi.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/rofawizuw.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/d5v7at370nps0nf23p4cd2er52/83586485198.pdfIn PDF document text
  • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63488444447.pdfIn PDF document text
  • http://suttonoakfarms.com/clients/880813/File/kiradunejinefu.pdfIn PDF document text
  • https://adtw1.com/ckfinder/userfiles/files/ketozezi.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f84c0e870d---mefumomox.pdfIn PDF document text
  • https://mkycc4.com/kycc4.com/userfiles/files/piwuwexivo.pdfIn PDF document text
  • https://agrimal.pl/userfiles/file/fofenovej.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/lomefififufugadotituganug.pdfIn PDF document text
  • http://flynewsletter.com/uploads/file/68077938872.pdfIn PDF document text
  • http://firstcuwire.com/file_media/file_image/file/sojuxozezojuzogixafumew.pdfIn PDF document text
  • http://capthepcongtrinh.com/uploads/news/files/53292027934.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/40732286316.pdfIn PDF document text
  • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/avfkli15b5nbklsollkhs95jr2/gumafebazazij.pdfIn PDF document text
  • http://monkey-do.net/userfiles/file/juzurapawipanuwo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=analisis+de+oferta+de+un+producto+ejemploPDF 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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