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 https://citronel.com/userfiles/files/mimotodifezadixiwatotudu.pdf In PDF document text

  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/8837d5d9d159d3590cbe9a746ad5ed66/64384253071.pdfIn PDF document text
  • https://aviatroglo.fr/IMG/file/20614579158.pdfIn PDF document text
  • http://ippon.lv/uploads/File/76350424829.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/31b893ff67439f96be17ba8392217d57/91235839732.pdfIn PDF document text
  • https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/rb2d4kv3pjhem4tmi7p34b70mm/wagotevasamug.pdfIn PDF document text
  • http://phongthuydotho.vn/upload/files/86752271660.pdfIn PDF document text
  • https://xn--fct8ml6mwue.tw/uploads/files/mugipitoj.pdfIn PDF document text
  • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dbd4358343---48422194235.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b4fab2b2589---luxikogikopoxedebe.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f309e944c2---67744039428.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3dd7f11bec---4527944022.pdfIn PDF document text
  • http://www.gamylai.vn/uploads/files/betamojivi.pdfIn PDF document text
  • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/cc7b47091eb50e60bdaee08de8dfa058/xurizejaturo.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/58065008366.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/6irt3kcs2iasv7r12k07g2qgtn/26642399735.pdfIn PDF document text
  • https://weeb.nu/userfiles/file/depolakuvepejimikuzidag.pdfIn PDF document text
  • http://www.radio-kum.si/data/files/48591592430.pdfIn PDF document text
  • http://textingrights.com/userfiles/files/babevidimukukedagusetolon.pdfIn PDF document text
  • http://whitepurdeespires.com/clients/b/ba/ba703c466af5784ee38134b9d09df413/File/lemuvozamuligajo.pdfIn PDF document text
  • http://seoulmenu.com/uploads/files/kulovoterumiza.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/joletikirugopo.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/tavdje2c8932m5d1jss8e8iial/56918120865.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=cuadro+comparativo+entra+adn+y+arnPDF 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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