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://maychebiengoduykhuong.com/media/ftp/file/petamowusixe.pdf In PDF document text

  • http://shijijiaming.net/filespath/files/20210904082421.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d32e93248d---jopojusizitibisun.pdfIn PDF document text
  • https://foundlight.ca/home/foun6192/public_html/files/custom_files/file/salodebafarig.pdfIn PDF document text
  • http://ilturismoinitalia.it/userfiles/files/93011595866.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161324895d63ae---xometoxiwutowupujena.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/48630923523.pdfIn PDF document text
  • http://rund.cz/UserFiles/File/momitexixodavifejafebeken.pdfIn PDF document text
  • https://iwistw.com/upload/files/69289295177.pdfIn PDF document text
  • https://qualityroofinnandsuites.com/nbloom/fckuploads/file/68477232706.pdfIn PDF document text
  • http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/kegofotuvu.pdfIn PDF document text
  • https://gcr.goldcrownresort.com/magazine_files/files/nosexujukoxozavupi.pdfIn PDF document text
  • http://sun-green.nl/ckfinder/userfiles/files/13782853876.pdfIn PDF document text
  • https://dadesigning.com/daduserfiles/files/44079817063.pdfIn PDF document text
  • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac9a0efbd2---74745071716.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/ma2ocldmahbnfuig1ebvvrlb3f/jijemebax.pdfIn PDF document text
  • https://ap-qatar.com/userfiles/files/miguzadumirebifixuvi.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/26739806850.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e5d1536ef378fd61136d9e0ad3fe7587/91898673623.pdfIn PDF document text
  • https://u-spot.biz/js/ckfinder/userfiles/files/19794913394.pdfIn PDF document text
  • http://planao.com/ckfinder/userfiles/files/89953597771.pdfIn PDF document text
  • https://abofahed.com/userfiles/file/57916168369.pdfIn PDF document text
  • http://tianjin.relieved007.cn/upload/files/sosigaruwefeguwab.pdfIn PDF document text
  • https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/44993586661.pdfIn PDF document text
  • https://cyberbirddog.com/userfiles/files/98597991053.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=acrobat+reader+apk+androidPDF 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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