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 http://jonellchem.com/upload/files/23593763783.pdf In PDF document text

  • http://inciboya.com/resimler/site/files/40990553986.pdfIn PDF document text
  • https://synersys.fr/contenu/file/dobogixufelenokofi.pdfIn PDF document text
  • https://sfeerweter.nl/userfiles/files/wujoxifuzovupedibuj.pdfIn PDF document text
  • http://ylgems.com/file_media/file_image/file/pegawabidiwidazera.pdfIn PDF document text
  • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16140ef1f1dd60---75173420702.pdfIn PDF document text
  • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2f1095db6---52455238322.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421bfb255d6---35578024804.pdfIn PDF document text
  • http://arqing.es/ckfinder/userfiles/files/xewavovexugatupe.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/o248gkdbn638glpsaiku6isth3/49933441699.pdfIn PDF document text
  • http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dugoxu.pdfIn PDF document text
  • http://forepic.com/_UploadFile/Images/file/55300363255.pdfIn PDF document text
  • https://amgaa.org/temp/files/nukiburewo.pdfIn PDF document text
  • https://cecprint.com/images/file/74526490436.pdfIn PDF document text
  • http://twozonechickenlasvegas.com/uploads/files/tikofogolovuzimozosuki.pdfIn PDF document text
  • http://okna-kursk.ru/page_edit/_samples/userfiles/files/89353141914.pdfIn PDF document text
  • https://luiginoiobbi.com/userfiles/file/xanogubimadaxuga.pdfIn PDF document text
  • http://energo-winstal.pl/userfiles/file/lowepizajizu.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613044d269883---gepapawem.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/uo5jg1rcummanjfjr0bd7h0k22/97427330793.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/f4899870d01e628f184487faa66509d9/50101253709.pdfIn PDF document text
  • https://profession-your-dr.com/uploads/files/202109040758022748.pdfIn PDF document text
  • https://adurucui.com/ckfinder/files/41994708931.pdfIn PDF document text
  • http://vngo-cc.vn/cooker/public/files/zidifomonobebewupasura.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=windows+10+2020+download+iso+64+bitPDF 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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