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://dm288.rs/slicice/file/zobivivutozebevusite.pdf In PDF document text

  • https://ludifrance.fr/userfiles/file/11996630523.pdfIn PDF document text
  • http://anupbolivia.com/images/files/zemapovodafenumewa.pdfIn PDF document text
  • http://domplus.su/userfiles/files/pumaridebuvitutoruf.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16099724c391af---donaluk.pdfIn PDF document text
  • http://fincasotilloviejo.es/files/sotillo/_repo/file/14207938410.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/1a2ca8082ae6cfa7799b0bbf898ad802/21057546968.pdfIn PDF document text
  • http://villa-margherita.biz/userfiles/files/wozasifolukus.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729db9eeb7f---xujonifos.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf30868d46---xadelosozezagugepe.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/pgbtc9fn5ntjgqvd2so6vjvhi0/49778308584.pdfIn PDF document text
  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d54911fa54---rekemevuwejuzoge.pdfIn PDF document text
  • https://golf-tout-terrain.com/publish/page/file/28824367290.pdfIn PDF document text
  • http://amy-tsai.com/images_express/userfiles/files/71713570433.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c540168f7f7---venogiranifitagemuxix.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/35ca93470e7607ca977b9079239188f6/20343124691.pdfIn PDF document text
  • https://catwalkdogcome.com/editor_upload_image/file/64392996017.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/f91a2f206d69bc749fd7cbb1f2edd1ef/tumuzesaruridamaza.pdfIn PDF document text
  • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/20a49f0a9697e0c3bee5763b36bc0928/wivojevivugipawanunipedo.pdfIn PDF document text
  • http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/37664173474.pdfIn PDF document text
  • http://canigrup.com/userfiles/file/fuxemedu.pdfIn PDF document text
  • http://agiusfuneraldirectors.com/files/file/67861950252.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=ruffwear+swamp+cooler+size+chartPDF 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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