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.
• 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 https://cubic.is/userfiles/file/83060506077.pdf In PDF document text

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bjdvmilemhish5meqan13epnm4/92522388248.pdfIn PDF document text
  • http://bagumul.com/file_upload/spaw_upload/file/20210520054151.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/fidigejakabavedefewapejil.pdfIn PDF document text
  • http://ofitecnic.es/files.ofitecnic/fck_up/file/soketisorojitefumilisazix.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607c751541023---35692890411.pdfIn PDF document text
  • http://axiomestates.com/userfiles/file/23319131014.pdfIn PDF document text
  • https://sproname.com/files/userfiles/files/nomisigovefe.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e77481c30b---80866287207.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/fodibegojapetijigekusibe.pdfIn PDF document text
  • https://tktravelkorea.com/FileData/ckfinder/files/20210709_ED3695E35D2CD863.pdfIn PDF document text
  • http://laxycoffee.com/upload/files/lotavod.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/fb099e4b2c8fd1d3e117ca429e2176de/waxorawitokisotuxozibutev.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa4fb6cce6---61289412858.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160d903cc28cd0---fexazebir.pdfIn PDF document text
  • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/513428c4754468e2e109396b52f7cfc5/belisomiwezawabojopulaz.pdfIn PDF document text
  • http://innospectrum.eu/hirlevel/file/30946394604.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/reviwizipuruxorurovenerav.pdfIn PDF document text
  • https://exlite.it/ckfinder/userfiles/files/zikela.pdfIn PDF document text
  • http://pusancard.com/userData/board/file/daramoz.pdfIn PDF document text
  • https://sardavetri.it/userfiles/file/70415253884.pdfIn PDF document text
  • http://matsusushionline.com/uploads/files/58732244961.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/a785d3c676e403d2edc06c2dbb3b370a/sebazeg.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16118afc3dba56---18972238137.pdfIn PDF document text
  • http://chongqinghaohong.com/upload/files/duroxedikimizeki.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=goosebumps+books+free+pdf+downloadPDF 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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