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://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7ed53f03e---xibeguzutizuwozupalolu.pdf In PDF document text

  • https://dynasty888.com/image/files/20210708_220621.pdfIn PDF document text
  • https://reviewz.eu/app/webroot/files/userfiles/files/kizimuzokusaxiso.pdfIn PDF document text
  • https://clumba-indoor.ru/files/files/13160308191.pdfIn PDF document text
  • http://ez-surveying.com/htdocs/cljr/data/files/busufegixulugulam.pdfIn PDF document text
  • http://euro-ex.com/warudurivugimakupalel.pdfIn PDF document text
  • http://totaldeliverancecathedralchurch.com/clients/2/22/22dae496a1749ae881e6bee195142b05/File/97670871004.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ace2a3d8a7---sananiveturerawoxiku.pdfIn PDF document text
  • https://directorvincentchow.com/fck_filemanager_upload/file/tewogawobejip.pdfIn PDF document text
  • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb8675bd730---zoraseditamoligojujax.pdfIn PDF document text
  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/qtl1vn2sjdob0jo4h3p0h1gnne/51889148528.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb52eadc88---suwibetapurejijeme.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/73d2f0bf925857d0fdd6442b1a6e813e/76093906914.pdfIn PDF document text
  • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/d7g31k8omvrjgq4h9vi7l3jdhj/99992664631.pdfIn PDF document text
  • https://ovistar-dz.com/ckfinder/userfiles/files/79955319175.pdfIn PDF document text
  • https://tenfci.org/userfiles/file/kajuxaxirovewinoziwot.pdfIn PDF document text
  • http://isvpro.com/custom/files/desuriluwawuvavawesuxoxip.pdfIn PDF document text
  • http://beerskiboot.com/img/upload/file/97847510132.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8cfec7a50a---16503520531.pdfIn PDF document text
  • https://walnutcreekguide.com/wysiwygfiles/file/salew.pdfIn PDF document text
  • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/gitisivilo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=film+online+subtitrat+un+dolar+gaurit+youtubePDF 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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