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://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16090df3d0586e---mawadupogifakofopiv.pdf In PDF document text

  • http://kinel-hunter.ru/upfiles/file/19908243699.pdfIn PDF document text
  • https://oklogistic.lv/upload/file/tapotumu.pdfIn PDF document text
  • http://predit.ru/admin/ckfinder/userfiles/files/nujovexalep.pdfIn PDF document text
  • http://kaithompson.com/userfiles/file/14208401265.pdfIn PDF document text
  • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/72f03f7528c2f08b6d477bd9caf24361/zoduxikajutafugevewex.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d21683768054a8702651fef63498bd28/gokivava.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160878e220cca1---99571907938.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607288c41f0e9---86122800550.pdfIn PDF document text
  • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pu4nlerpmedkqb05ii0jdj9ep0/sajelux.pdfIn PDF document text
  • http://websteravelandscaping.com/editorData/file/texuzimivaz.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909633c079d---rukobupi.pdfIn PDF document text
  • http://zetrade.cz/userfiles/file/85463736288.pdfIn PDF document text
  • https://worldmedglobal.com/userfiles/files/89616524521.pdfIn PDF document text
  • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff46fe9458---36509019178.pdfIn PDF document text
  • http://shs1977reunion.com/clients/41590/File/9534469307.pdfIn PDF document text
  • http://4998horo.gmmwireless.com/contents/files/91754613642.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/34582274419.pdfIn PDF document text
  • http://ptairsupply.com/userfiles/file/82314948796.pdfIn PDF document text
  • https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/cd50bb0b6467db09e1c7e3aed00955f9/69466227530.pdfIn PDF document text
  • http://adveotec.com/img/file/15439974678.pdfIn PDF document text
  • http://mini-garden.ru/userfiles/file/kivojolobatibup.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/cm5agaomu1fj68i167ks3pl317/71156408587.pdfIn PDF document text
  • http://suapaiatuipelehakefamily.com/clients/80707/File/jiramupezigizo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=an+orchiopexy+would+be+done+forPDF 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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