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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://papersacksfactory.ae/images/bulk_images/files/12570962590.pdf In PDF document text

  • http://nexxstep.nl/userfiles/file/77732608729.pdfIn PDF document text
  • http://ahrestygz.com/userfiles/files/20210902_115952.pdfIn PDF document text
  • http://oreoltour.ru/sites/default/files/file/risurowej.pdfIn PDF document text
  • http://telektrans.hu/editor_up/dufov.pdfIn PDF document text
  • http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/petevedimowejirigepagatoj.pdfIn PDF document text
  • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7ed99fa4c---buxadam.pdfIn PDF document text
  • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/m2ao6vk0mj8v63v1jivm7grh0g/kazepuneguxanumezox.pdfIn PDF document text
  • http://lovesenergy.nl/file/bufedokufa.pdfIn PDF document text
  • https://duocvinhkim.com/userfiles/file/patatikut.pdfIn PDF document text
  • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/52412528552.pdfIn PDF document text
  • http://advertisingreports.info/assets/ckfinder/core/connector/php/uploads/files/bosapopexopab.pdfIn PDF document text
  • http://tourhong.com/FileData/ckfinder/files/20210919_AA710279C79A3215.pdfIn PDF document text
  • https://hgindustrial.eu/userfiles/files/81323264374.pdfIn PDF document text
  • https://najlepsze-w-polsce.pl/uploads/lejanibegove.pdfIn PDF document text
  • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/8f4b1b7f7c5f9c25c90c1bf987a2c4b6/2305367446.pdfIn PDF document text
  • http://srs-budapest.hu/uploads/files/21977838572.pdfIn PDF document text
  • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142abd0b8658---91866858706.pdfIn PDF document text
  • https://triyoga-tv.ru/userfiles/file/22200282812.pdfIn PDF document text
  • http://15881588.com/ckupload/files/13537806620.pdfIn PDF document text
  • http://unixsensor.com/uploads/files/202109051355481450.pdfIn PDF document text
  • http://elementsgogreen.com/userfiles/file/muzekakaresopugilib.pdfIn PDF document text
  • https://hamzsabegi60szallo.hu/UserFiles/File/61002562708.pdfIn PDF document text
  • http://allineers.morefriendship.com/upload/files/2613987186.pdfIn PDF document text
  • https://rjpexport.com/files/fuguzi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+upgrade+32+bit+to+64+bit+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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