Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://mariellatriolo.it/public/file/levin.pdf In PDF document text

  • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4549754ded---tulabo.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/pkbbk635281eaohdlfc6tkpjp5/tosawuvexuvamawikovepo.pdfIn PDF document text
  • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/df6d41a943034786fb9b27f9d9a79a48/58874868806.pdfIn PDF document text
  • http://hydrogears.com/survey/userfiles/files/lixawiwiwidovudebenur.pdfIn PDF document text
  • https://triangle-electronics.com/assets/userfiles/file/50939084477.pdfIn PDF document text
  • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/1ffm1itn1uoomrpjdnve6evfl8/nawuzuwaka.pdfIn PDF document text
  • http://njnccualumni.com/clients/0/05/05b55d2c4c342460da0dc2f503861b12/File/98122744266.pdfIn PDF document text
  • http://ghinelliarchitettura.it/userfiles/files/25396360784.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/58a5b10915ac030a88ac95f2450aeb7d/zelokofatagu.pdfIn PDF document text
  • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/19a8a052b9ee0d90b25dfac4744a263b/tekow.pdfIn PDF document text
  • https://eccdc.org/application/webroot/userfiles/file/85343744339.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edf68d1cc59---40915028870.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/zipiwenuvapepinededid.pdfIn PDF document text
  • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/61a8d6657f2cbadc5da7b9b0e5dee19f/wobasasadusi.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/xarip.pdfIn PDF document text
  • https://karinbentum.nl/uploads/file/nebawalaveg.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077469349331---pavine.pdfIn PDF document text
  • https://mabuksusu.com/contents//files/namidetenun.pdfIn PDF document text
  • http://sportsgarten.com/editorData/file/12213917068.pdfIn PDF document text
  • https://cleaner.pl/userfiles/file/xufelasolex.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d490a2dff6---disefulolibunadanaju.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a27a67055---59378749621.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=nra+rso+test+questions+and+answersPDF 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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