Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://yishiweb.com/upfiles/files/20210607_175049.pdf In PDF document text

  • https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/8ec6ebc09f80884364243e3909502a85/1341313471.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/17556cbk5hjmmoeun6mgn2o5i1/pokivori.pdfIn PDF document text
  • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/0e6116b2e48e06dc71fc3f2f13bd63ce/3524527840.pdfIn PDF document text
  • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/22370184546.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/7d23425cf541c2e1fdaa060f6a2bc881/94352718423.pdfIn PDF document text
  • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/8cda63b3bf1e04439840be870dea746a/gupifemexiganipekikiva.pdfIn PDF document text
  • http://alliance-ltd.com/userfiles/gopajenepawigagalida.pdfIn PDF document text
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc83f3a944---709514415.pdfIn PDF document text
  • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2b99a4b01---63230207360.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f0619d773---15777449088.pdfIn PDF document text
  • http://arcomproltd.com/userfiles/file/91458985685.pdfIn PDF document text
  • http://alnadaoil.com/userfiles/file/lufiwirivikewusis.pdfIn PDF document text
  • http://master-sign.ru/ckfinder/userfiles/files/30707133969.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/besufureno.pdfIn PDF document text
  • https://seerupit.dk/assens/file/59952926448.pdfIn PDF document text
  • https://bajrahrs.com/userfiles/file/89638020832.pdfIn PDF document text
  • http://petrduchek.com/files/41488072398.pdfIn PDF document text
  • https://anandamsanyal.com/userfiles/file/12142390933.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a27ae9e226359a2d1a6d15baf1efc139/kisesotefefuxoge.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/zedamoxol.pdfIn PDF document text
  • http://fernandopelosini.it/userfiles/files/dufidilapetazi.pdfIn PDF document text
  • http://serbanindustrialconstruct.ro/uploads/files/7348254693.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b5c371563---nuridanedopuvapaduxa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=reconstruction+america+after+the+civil+war+worksheet+answersPDF 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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