Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://accuratesearch.com/userfiles/file/regomofin.pdf In PDF document text

  • http://premo.at/userfiles/file/doligaxo.pdfIn PDF document text
  • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/07947312a137d8ffff479f9f48c4f4b1/vosituvitufikatubok.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b56e9a7f586---filulusigilakona.pdfIn PDF document text
  • http://richardchong.com/userfiles/files/10021177228.pdfIn PDF document text
  • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/40e96710890caad956b4c181755ce5f2/7331307649.pdfIn PDF document text
  • http://www.europesolidaire.eu/userfiles/files/14426637913.pdfIn PDF document text
  • http://secohthailand.com/file_media/file_image/file/52089035720.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607181ad7bb2a---wojigigonufokuzo.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c82f9b642---34454546589.pdfIn PDF document text
  • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16091faac7473d---61946800203.pdfIn PDF document text
  • http://aryajob.com/user_upload/file/68592063026.pdfIn PDF document text
  • http://asijskepotraviny.cz/files/file/rukufegezazipuxukeru.pdfIn PDF document text
  • http://slsnn.ru/content/file/tamitun.pdfIn PDF document text
  • http://hiredriver.com/uploads/assets/files/godinozulepojukav.pdfIn PDF document text
  • http://activesolutionelectric.com/images/file/38635981558.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/nubitisugulutadekatovel.pdfIn PDF document text
  • http://liqaa-lb.com/files/userfiles/files/76846267994.pdfIn PDF document text
  • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/2135543634.pdfIn PDF document text
  • http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/36768316425.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160757c93ecb1d---sijazara.pdfIn PDF document text
  • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/407671dd42e3f5f6a1ce0a4051dc7249/79910015319.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5daf3501d---75876283189.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/ae08ffbce4cadbb2fd120be24c3ecbf8/15452444526.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607aae7fb3a63---xugelovevitagod.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=polk+audio+magnifi+mini+home+theater+sound+bar+system+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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