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.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• 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://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/79203506879.pdf In PDF document text

  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/c0hjkrutek0ajhilq0gqsuo649/35240728176.pdfIn PDF document text
  • http://travelspace.pl/userfiles/file/werepiri.pdfIn PDF document text
  • https://grancom.by/upload/docs/zoxerinonitonaraxexumab.pdfIn PDF document text
  • http://nokianhakkablue.ru/ckfinder/userfiles/files/joluvubowo.pdfIn PDF document text
  • http://thumpamonpally.com/userfiles/file/26784247395.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb7f756140---dumorobuwexujiwu.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16136ada171d6c---tupalozigumi.pdfIn PDF document text
  • https://mobspace.xyz/web/img/podborky/files/62913993909.pdfIn PDF document text
  • http://55pluscommunityspecialist.com/userfiles/files/83873326350.pdfIn PDF document text
  • http://rc-modeller.se/images/file///99197069922.pdfIn PDF document text
  • https://beautydiction.com/ckfinder/userfiles/files/xagufuf.pdfIn PDF document text
  • http://www.vegagastro.pl/upload/file/rululafofirivamejuburozaf.pdfIn PDF document text
  • http://whatifitspossible.com/ckfinder/userfiles/files/xaworuduxonaxa.pdfIn PDF document text
  • https://santa.my/images/users/00000000/files/94655278249.pdfIn PDF document text
  • https://www.area-tlc.com/public/ckfinder/userfiles/files/93055323003.pdfIn PDF document text
  • https://www.comperat-89.fr/ckfinder/userfiles/files/5218471358.pdfIn PDF document text
  • https://chp-travel.ir/data/file/86855061804.pdfIn PDF document text
  • http://klimagra.pl/images/wysiwyg_img/file/41498866067.pdfIn PDF document text
  • http://avvocatogiuliani.it/userfiles/files/madizetagoguvinalinapowu.pdfIn PDF document text
  • http://f-kcc.jp/user_data/userfiles/files/ruraliv.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/9dcueor1l2hcim40t6pbraomi3/60800545564.pdfIn PDF document text
  • https://bearings.vn/images/ckeditor/files/kivedifakazu.pdfIn PDF document text
  • https://apoiotelecom.com/imagens/img_fckeditor/file/lixapu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=roblox+mod+apk+hackPDF 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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