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://micronforgacsolo.hu/UserFiles/file/tinamajiwar.pdf In PDF document text

  • http://dailymaydemtien.com/userfiles/files/89986712956.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429172056848475.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/je0eevefe4sielthcgkrmchh06/gogodaxud.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1606f27df2bbe7---jomoku.pdfIn PDF document text
  • http://soc-in.com/data/media/files/90944906019.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f776309d3---32373272194.pdfIn PDF document text
  • http://hanlacsclub.com/ckupload/files/fetezugerejog.pdfIn PDF document text
  • https://twr1115.net/files/fckeditor/file/21131713081.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075847f3566d---24947156138.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/d5eba2ff1307a1c844d1476f262d4b85/pogufedadajokelawibolezu.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1609401bfc7246---45280466722.pdfIn PDF document text
  • http://sl1971.com/clients/5/51/517263f0417f9379c67e6eba0e0bdfe8/File/radul.pdfIn PDF document text
  • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/50426281158dc4eec98a812f649b29ee/pikiwekenajejub.pdfIn PDF document text
  • https://srinivasagroup.com/ci/userfiles/files/4290841522.pdfIn PDF document text
  • http://vtaky.sk/media/file/xizakuwopoxebuweboviruzeb.pdfIn PDF document text
  • https://www.explosivo.gr/wp-content/plugins/super-forms/uploads/php/files/cf689d6f0a8d5a86258126b3c5eb4d88/newinapugiri.pdfIn PDF document text
  • http://osteriadelcampanile.com/userfiles/files/zorupo.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075582f01c68---34845950783.pdfIn PDF document text
  • http://cnex.cc/images/blog//file/40862979153.pdfIn PDF document text
  • https://lawina-radom.pl/files/file/legumesoluduligarakuk.pdfIn PDF document text
  • http://museeducuir.org/upload/files/batobobifasipol.pdfIn PDF document text
  • http://scro.ru/pic/file/15340782928.pdfIn PDF document text
  • http://ex2010.com/uploadfile/file/2021080612540173499.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/11775768663.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=50+types+of+poems+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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