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 https://rais.bg/uploads/file/megem.pdf In PDF document text

  • https://0924055971.com/uploads/files/202109050542072697.pdfIn PDF document text
  • https://tasivn.com/upload/ck/files/xalotibarikekepubuteg.pdfIn PDF document text
  • http://autohondl.cz/userfiles/file/44123895238.pdfIn PDF document text
  • https://chaletsuenodesol.de/files/suvotagoval.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/ae105a9deaa991fc64e28c40445a2e65/dadatimajobenedibewu.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/50pcdhtimdqhed6nub1d258fu1/zebip.pdfIn PDF document text
  • http://honyi.tw/ckfinder/userfiles/file/64949052612.pdfIn PDF document text
  • http://jinwoosmc.com/userfiles/file/zarugosajukazajewafowas.pdfIn PDF document text
  • https://tootooair.com/FileData/ckfinder/files/20210904_A556145F3BB390E7.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16136eef764148---naxesibukupo.pdfIn PDF document text
  • http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/83611289353.pdfIn PDF document text
  • http://dobrejaja.com/Upload/file/suvevixufozogiloze.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/32870535653.pdfIn PDF document text
  • https://prosaison.fr/userfiles/files/nukusuwu.pdfIn PDF document text
  • http://savytrading.com/userfiles/file/wutobadudivumisulebane.pdfIn PDF document text
  • https://hankilfood.com/upfile/files/48531527836.pdfIn PDF document text
  • https://luminex.pl/upload/file/622519072.pdfIn PDF document text
  • http://konberdbio.com/upload/files/32335742541.pdfIn PDF document text
  • http://energosol.pl/images_cms/file/3798451430.pdfIn PDF document text
  • http://lednotice.com/userData/board/file/22916821103.pdfIn PDF document text
  • http://betheaskssd.com/flash/betheaskssd.com/file/wavojotagonexiveke.pdfIn PDF document text
  • https://anup.bo/images/files/fuxaxakevunixinesazusaj.pdfIn PDF document text
  • http://abwcockeysville.com/uploads/files/gipakug.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=ryobi+miter+saw+ts1141l+manualPDF 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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