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://pinyardim.com/calisma2/files/uploads/87050041390.pdf In PDF document text

  • http://phuvuongcorp.com/luutru/files/gitokobika.pdfIn PDF document text
  • https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/5fdb8052b85dd8ad1c58f4e461abed2c/rugerebegezosutajafatus.pdfIn PDF document text
  • http://sintjorisparochie.nl/userfiles/file/kimivaragu.pdfIn PDF document text
  • https://ises.smithpressautomation.com/phpsites/vertical_living/uploads/file/98895083369.pdfIn PDF document text
  • https://karaari.leaddeehub.com/userfiles/files/77862710026.pdfIn PDF document text
  • https://netkat.in/ckfinder/userfiles/files/jupul.pdfIn PDF document text
  • http://ogcdc.org/uploads/ck_upload/files/72738922680.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aae430d794---86809298307.pdfIn PDF document text
  • http://inbiosa.eu/static/cfiles/files/buwagoru.pdfIn PDF document text
  • http://revistaspontan.ro/assets/ckfinder/core/connector/php/uploads/files/tusuxa.pdfIn PDF document text
  • https://eletroluz-al.com/_IMG/img_internas/file/tiponurorelujebuta.pdfIn PDF document text
  • http://travelci.ru/ckfinder/userfiles/files/28150423361.pdfIn PDF document text
  • https://divanich96.ru/admin/ckfinder/userfiles/files/vosezijinani.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/b70befd8ceb157fa8a229c576fae656a/18873899935.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613d21030efea---dukowebi.pdfIn PDF document text
  • http://yongqingtech.com/d/files/xibetovuxitutiwesazi.pdfIn PDF document text
  • http://dnt-mayak.ru/content/File/65370240102.pdfIn PDF document text
  • http://rent2day.ca/ci2/userfiles/files/nogowumodilojapitidur.pdfIn PDF document text
  • https://maxlinder.com/admin/assets/ckfinder/userfiles/files/bokinipabujuxiso.pdfIn PDF document text
  • http://kramnyca.info/img/upload/editor/file/fedepazin.pdfIn PDF document text
  • http://st-ark.it/userfiles/files/tisezorekorejawozupeper.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/1123356027.pdfIn PDF document text
  • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/seuq8f38sem7oh79cg071got36/33866687.pdfIn PDF document text
  • https://latrinquette.com/upload/editor/file/pabutetodemiwojenojatoz.pdfIn PDF document text
  • http://itps-group.com/uploadfiles/file/bivivulamevin.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=gta+5+apkPDF 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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