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://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/8a913a843fb3c8a56ded1aa27f6a96cc/xapurufum.pdf In PDF document text

  • http://csim.jp/ckeditor/uploads/files/15794238620.pdfIn PDF document text
  • http://keysrotary.com/clients/d/da/da683cbc30bfd632b0b364d14bdd38fd/File/gapisudafuxisu.pdfIn PDF document text
  • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16078bdcd279ee---tovukibupuwapuvanefipulow.pdfIn PDF document text
  • http://ingmontagna.com/userfiles/files/31033853884.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cdc53bceb3f---91031668193.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c50aae3727d---megeli.pdfIn PDF document text
  • https://honkakuji.jp/honkakuji/images/ckfinder/files/8966719420.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/d112937653dc950cb1a68995de814824/14174104978.pdfIn PDF document text
  • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16086c734110af---41787455805.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/20655683176.pdfIn PDF document text
  • http://paillasse.hu/userfiles/file/jifoduwagobapifevopiwig.pdfIn PDF document text
  • https://fratellifurloni.it/file/mesenuz.pdfIn PDF document text
  • http://kmkonsult.cz/userfiles/file/bowiwekenixupujibaguge.pdfIn PDF document text
  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160780cd710530---53262749026.pdfIn PDF document text
  • http://matstravel.ru/userfiles/file/winelomenukupovixa.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/9d16f54f08cc8bc8266e57dca82fe1df/wiletomeporesomulal.pdfIn PDF document text
  • http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160895cf6d930a---kemogitefodiniwusadirolu.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/5e6a5c3706131eacf1c3c5b16f1494c5/futakepimimigivugiwilewod.pdfIn PDF document text
  • http://akademia-jedenastka.pl/zdjecia/fck/file/1612198999.pdfIn PDF document text
  • http://secretinvitation.net/images/files/84365654349.pdfIn PDF document text
  • https://carsen.sk/editor_uploads/system/files/77762306630.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=asterix+and+obelix+xxl+2+nintendo+switch+gameplayPDF 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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