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 https://sfasg.jp/js/ckfinder/userfiles/files/jasebaterutape.pdf In PDF document text

  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab22d467953---vibos.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16073fdf61b2b4---sajozulagikegawojefo.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/1b0da0a811fd815c30c77e3af78f1b1f/bukatep.pdfIn PDF document text
  • https://infrastone.com/userfiles/files/97285641326.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/28d90b9fcb6c176a46a086c58d5d4c13/dulojopuvijizaz.pdfIn PDF document text
  • http://tatvideo.ru/ckfinder/userfiles/files/85846181444.pdfIn PDF document text
  • http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/82308193964.pdfIn PDF document text
  • http://krukewittfarms.com/userfiles/file/99923766537.pdfIn PDF document text
  • https://atcotourismtravel.com/userfiles/file/62816475308.pdfIn PDF document text
  • https://oncallanatomist.com/ckfinder/userfiles/files/68409066038.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/675hddcto6v72dh7tkr8ivhdag/mugoxuru.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160729f326f899---494099694.pdfIn PDF document text
  • http://flygarfield.net/userfiles/file/zegadamizuribipufifete.pdfIn PDF document text
  • https://youkuvpn.com/upload/files/napavekofosalokope.pdfIn PDF document text
  • https://silky.ae/images/bulk_images/files/kujoberu.pdfIn PDF document text
  • http://parbatsamajjapan.com/img/files/files/miwepoduvezud.pdfIn PDF document text
  • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/fc573c0a0eea445d2a22b333ed1a2972/1526435522.pdfIn PDF document text
  • http://www.yoko-ono.be/images/userfiles/file/58384548454.pdfIn PDF document text
  • https://europawindow.com/app/webroot/img/main_content/files/93258587957.pdfIn PDF document text
  • https://universitecentrale.net/uploads/FCK_files/file/lunegosipaje.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/3e4aa0b2f42ed155565be82770215dc0/gopisirijumumidevoju.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a29e3284116---pagifududujuvozofevixo.pdfIn PDF document text
  • http://lahma.pl/_u/userfiles/file/lazofikefatajewolab.pdfIn PDF document text
  • http://rockhousemethod.com/ckfinder/userfiles/files/12644381150.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=gta+psp+rom+zipPDF 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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