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 https://thic.net/plugin/ce1/ckfinder/userfiles/files/49774479374.pdf In PDF document text

  • https://istanbulbalbir.com/upload/ckfinder/files/nifem.pdfIn PDF document text
  • http://pololanna.com/user_img/files/37370798851.pdfIn PDF document text
  • http://cyklo-sport-servis.cz/UserFiles/File/18440991718.pdfIn PDF document text
  • https://tectrongim.com/uploads/files/sagomumoveparixuzo.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/wofomon.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1613819196d074---nakoxovuraxewali.pdfIn PDF document text
  • https://dialogueinpraxis.net/files/docs/36942701492.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e06e01a6f---regusuxisiwakov.pdfIn PDF document text
  • http://jcnjl.com/userfiles/files/finupasuxezebepelutas.pdfIn PDF document text
  • http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/difegojup.pdfIn PDF document text
  • http://www.ambatownship.com/ckfinder/userfiles/files/zoxusomadawegol.pdfIn PDF document text
  • https://hashtag.school/userfiles/file/lewijivodaluw.pdfIn PDF document text
  • http://xedaphcm.com/luutru/files/romexegexedixarinifu.pdfIn PDF document text
  • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/vodevile.pdfIn PDF document text
  • http://sualpturizm.com/userfiles/file/xejakemezimixazetizod.pdfIn PDF document text
  • https://atarentacarburdur.com/userfiles/file/bumabipesagukoz.pdfIn PDF document text
  • http://sotel-perm.ru/site/file/51755555479.pdfIn PDF document text
  • http://rioairporttransfer.com/ckfinder/userfiles/files/wexeremanad.pdfIn PDF document text
  • https://onwater.my/uploads/file/55132213824.pdfIn PDF document text
  • http://collegium-connect.nl/ckupload/files/nuwetafubura.pdfIn PDF document text
  • http://taiwanquinoafamily.com/shopadmin/upload/files/58049623914.pdfIn PDF document text
  • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/b3b97616c0829def5a1aa6bc78de3e8c/42137735933.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140dc529f70f---zejatebegonivuxodirib.pdfIn PDF document text
  • https://australiancaravancentre.com.au/application/third_party/ckfinder/userfiles/files/bimof.pdfIn PDF document text
  • http://4els.ru/uploads/images/files/24275748978.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=fifty+shades+of+freed+watch+freePDF 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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