Malicious PDF — malware analysis report

Heuristics 7

• 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 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://queure.ru/uplcv?utm_term=the+audience+was+or+were PDF link annotation

  • http://anhuishangbiao.com/upload_fck/file/2021-5-25/20210525194938701953.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3def9f2f9---42198549750.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d030d8141---bizisuforudirepatuwabine.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/58d1d3ab177f643a8e739a6e91332c1e/bikadidulotolugoma.pdfIn PDF document text
  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/08a8eba882c10798634962d349f2ae49/68252088056.pdfIn PDF document text
  • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/a3820ebd62fef86b5c99ac28232a343d/9488972841.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7ac278ed6---43516492937.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/6384a9e034b4a39113c86c01fb4ff42d/87285089067.pdfIn PDF document text
  • http://drjoecarver.com/clients/49355/File/53235793380.pdfIn PDF document text
  • http://accronline.com/userfiles/file/81771083451.pdfIn PDF document text
  • http://peach2560.xyz/js/ckfinder/userfiles/files/4365528701.pdfIn PDF document text
  • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/0b70662ca0e25ed345e9b66d3a09c3ac/geduwuvuxodepave.pdfIn PDF document text
  • http://studiomilano.eu/userfiles/files/ravibizigebukemedoxej.pdfIn PDF document text
  • http://tcurryproperties.com/konadnew/userfiles/file/47912203872.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/8f82777f806c39d5d6084ca1c71746bc/45543766347.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/panibesomolajuwazewiri.pdfIn PDF document text
  • https://baxsporthorses.nl/userfiles/file/sisidamexifuz.pdfIn PDF document text
  • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/396baa312810cd468ac7eec24eaa70e3/vagazokanazovesivenovet.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/f771c5425b4c600e8ab1676f0f071149/12154405868.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608b162606e54---nuwedupawajoruxubak.pdfIn PDF document text
  • http://mdbim.pl/ubezpiecz/obrazy/file/xonur.pdfIn PDF document text
  • http://vytvarnyobchod.cz/UserFiles/File/89242147430.pdfIn PDF document text
  • http://exclusivelimoservice.com/ckfinder/userfiles/files/lexufivozuxizodakapuwar.pdfIn PDF document text
  • http://otvorene-srdce.sk/userfiles/file/25632766135.pdfIn PDF document text
  • 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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