Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://baobianhkhang.com/upload/files/33059083494.pdf In PDF document text

  • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbdfd0cd375---lavajobevewexigolozo.pdfIn PDF document text
  • http://vivo-mebel.ru/upload/file/60530660525.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607784c5f010d---danepowupofijatibapefa.pdfIn PDF document text
  • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/5a678d34d812eb5e9e34eea5a6663e76/62330661538.pdfIn PDF document text
  • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/444aac461f3781843df42440cfe142ff/figowi.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5d0ece0a4---nefaxe.pdfIn PDF document text
  • http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/1492816950.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aff64e0b280---56114993441.pdfIn PDF document text
  • http://kokocurry.gm/userfiles/file/lobuvutetipapipagazatokin.pdfIn PDF document text
  • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160846dc31ffc0---pipiwexituladumawuture.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082ccdf655c8---basonumezute.pdfIn PDF document text
  • https://playerpress.com/ckfinder/userfiles/files/lomefawa.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/8b61f43f384a13630d26ead2d7d35ead/96296654099.pdfIn PDF document text
  • http://ylgems.com/file_media/file_image/file/lesajidikaguxakimuxo.pdfIn PDF document text
  • https://fotoprint.lv/downloads/file/47176227288.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/xisumu.pdfIn PDF document text
  • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/de68cbf25988ded7fa205623fa075455/belit.pdfIn PDF document text
  • https://telewebmarketing.com/FCKeditor/file/39390106027.pdfIn PDF document text
  • http://ecovn.vn/uploads/news_file/67037071969.pdfIn PDF document text
  • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/a1ce5a10152c055dd70d1b876040a972/foxozarupizulu.pdfIn PDF document text
  • http://rallyteamwalraven.nl/file/zubedurukokujebilesutu.pdfIn PDF document text
  • http://pc75.net/upfiles/file/1624347126.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=runescape+classic+smithingPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#Referenced by PDF JavaScript
  • http://purl.org/dc/elements/1.1/Referenced by PDF JavaScript
  • http://ns.adobe.com/pdf/1.3/Referenced by PDF JavaScript
  • http://ns.adobe.com/xap/1.0/Referenced by PDF JavaScript
  • http://ns.adobe.com/xap/1.0/mm/Referenced by PDF JavaScript
  • http://ns.adobe.com/xap/1.0/rights/Referenced by PDF JavaScript
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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