Malicious PDF — malware analysis report

Heuristics 6

• 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 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://dgssu.com/upfolder/e/files/20210726161232.pdf In PDF document text

  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1611c9edd30cfb---46120514813.pdfIn PDF document text
  • http://hzjksj.com/images/upload/File/19477204410.pdfIn PDF document text
  • https://essaidafm.com/uploads/FCK_files/file/1841366213.pdfIn PDF document text
  • http://jatyn.cn/upfiles/202106/file/1623351356.pdfIn PDF document text
  • http://asude.istanbul/ck_images/files/407267262.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160735675f26d1---71190582615.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/33e3762437989e64e3e4e3fdf6468186/61574844186.pdfIn PDF document text
  • http://toyotarent.hk/FileData/ckfinder/files/20210901_DE46AAE51F7F4FDC.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/vifewedaxisiranuzoxulexu.pdfIn PDF document text
  • https://thefertilizergranulators.com/d/files/gogazodufugudaga.pdfIn PDF document text
  • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/ulrc980t5535hga7jt06iopn0n/78626185797.pdfIn PDF document text
  • http://thetsaban3watnuea.com/UserFiles/file/nevusedijakujudesiriniz.pdfIn PDF document text
  • https://citronel.com/userfiles/files/jifuzudawedep.pdfIn PDF document text
  • https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/30bf8a18d703a9522bc8a0fc4213fb2e/30612669980.pdfIn PDF document text
  • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4bf16233cd---75976829446.pdfIn PDF document text
  • http://brandiassociati.it/userfiles/file/laliso.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5bfd2a763---tilasonatevomasije.pdfIn PDF document text
  • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/1e19539b321a0aaa24fd19ea76d79d53/79623241913.pdfIn PDF document text
  • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/8vvvldgtutbm9eagft0c5k1dj7/xomalonamowikag.pdfIn PDF document text
  • http://china-miyaco.com/img/file/202166234953.pdfIn PDF document text
  • https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/c15f964a5eaf46f3dae453f6cb7dac30/lugigamojupuzosukofezar.pdfIn PDF document text
  • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/jopazeminube.pdfIn PDF document text
  • http://vncdata.net/app/webroot/uploads/files/nebemumaxixazagebun.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=drum+paradiddles+exercises+pdfPDF 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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