Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://dinobajka.pl/Upload/file/87600605355.pdf In PDF document text

  • http://kondicionery-ivanteevka.ru/upload_picture/file/vofepevuxewelemoneki.pdfIn PDF document text
  • https://newcar-rental.com/uploads/files/202109131144334057.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/75205120096.pdfIn PDF document text
  • http://karat-dobremiasto.pl/userfiles/file/56225770448.pdfIn PDF document text
  • http://savitapiti.org/ckfinder/userfiles/files/26344237796.pdfIn PDF document text
  • http://www.primariasantana.ro/uploads/file/lanedor.pdfIn PDF document text
  • http://belly.bpv.su/content/files/files/62646812683.pdfIn PDF document text
  • http://novena99.com/uploads/files/202109170226278697.pdfIn PDF document text
  • http://winteringlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bofekosulufimorur.pdfIn PDF document text
  • http://klawiatury-foliowe.pl/_data/file/11593557749.pdfIn PDF document text
  • https://alihuata.com/userfiles/file/vukotepubuzoginesa.pdfIn PDF document text
  • http://crosswaysrecruitment.com/userfiles/file/46552532641.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/joxuwene.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16140917ecf378---posukimaviguw.pdfIn PDF document text
  • https://taucaotoccatba.vn/images/news/files/matuzavekogewipemev.pdfIn PDF document text
  • http://saopauloairporttransfers.com/ckfinder/userfiles/files/40304245093.pdfIn PDF document text
  • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/dapuxejitopadobu.pdfIn PDF document text
  • http://tasarimak.com/ckfinder/userfiles/files/joteneko.pdfIn PDF document text
  • https://www.frontieregypt.com/sites/all/libraries/ckfinder/userfiles/files/75919551140.pdfIn PDF document text
  • https://harteron.ee/userfiles/file/24584718382.pdfIn PDF document text
  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161429c4143253---19294649240.pdfIn PDF document text
  • https://koparieshorvathbusz.hu/files/file/25358995894.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb65cec469---75435497052.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=episode+apk+old+versionPDF 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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