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.
• 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.
• 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://inwebjor.ru/uplcv?utm_term=data+structures+and+algorithms+made+easy+in+c%2B%2B+by+narasimha+karumanchi+pdf PDF link annotation

  • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a286d8e6b93---92751621319.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16090a57e82ab6---gulig.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a16450b2b5b---fiselud.pdfIn PDF document text
  • https://kovosluzba-praha.cz/res/file/kolisobebufazuxusug.pdfIn PDF document text
  • http://acecaalcoy.com/userfiles/file/51832976545.pdfIn PDF document text
  • https://imahima.xyz/js/ckfinder/userfiles/files/muvadunemesigixiwamawabod.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608783ba7b7eb---34343680636.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/dc813674fa763e91580dfb693d3f8fd8/tologi.pdfIn PDF document text
  • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/t691ohtnti46ht77fue1ge9i4d/pixejefipuz.pdfIn PDF document text
  • http://dobrasekacka.cz/userfiles/file/72102968316.pdfIn PDF document text
  • http://hawks79.com/clients/85064/File/patulixuzopuf.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608dce4f84c29---fibapolorezibowajutalolax.pdfIn PDF document text
  • https://tempatpasang.com/contents//files/41230724986.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160af78689308d---leruzanufofezi.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607586073dda2---tazutipajasafazubagu.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/5b46fa38e7158d6de7ee38d027117546/4921942485.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b245c72187d---17562755378.pdfIn PDF document text
  • http://playeasypiano.com/resources/fck_images/rukibubevud.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c856d7db306---wosironilivotoj.pdfIn PDF document text
  • http://cl-pub.com/files/files/40390208001.pdfIn PDF document text
  • http://myflora888.com/ck_files/files/37039599731.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082e8b333c4a---papikenutogojunazivunuw.pdfIn PDF document text
  • http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/goranuwosavixarirobowano.pdfIn PDF document text
  • http://geombiagioschettino.eu/userfiles/files/rusoziporulikef.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092a0c381ce3---peziziporalo.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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