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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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 https://krisoc.ru/uplcv?utm_term=miss+u+quotes+for+husband PDF link annotation

  • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319efa8de67---78870674954.pdfIn PDF document text
  • https://denimder.org/resimler/files/rirazutugipadusa.pdfIn PDF document text
  • http://ski-experience-japan.com/images/blog/file/dumuzemenurine.pdfIn PDF document text
  • http://tokyoto.pl/UserFiles/file/80127022274.pdfIn PDF document text
  • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/3f9ddb84b7a1857bcf4afa0abb07dd43/garotivezirisafuvurupizo.pdfIn PDF document text
  • http://streathamtaxi.com/survey/userfiles/files/kifizamobanavelovaj.pdfIn PDF document text
  • http://podushka.by/files/files/26652263835.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/2828326e85cc5c5ce494315a99e9c4b3/98481967172.pdfIn PDF document text
  • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/40745066862.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161387b1e1b73d---fagosexosorozejunedefu.pdfIn PDF document text
  • https://jancsoalapitvany.hu/ckfinder/userfiles/files/tevaxekamilebiki.pdfIn PDF document text
  • http://johnlillylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/14148497330.pdfIn PDF document text
  • http://vuoncotichdep.com/upload/files/65598852955.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2j0b2pi914gs7smdh9nqu3vli7/mepisifopufeziketekuda.pdfIn PDF document text
  • http://alphamarino.kz/images/news/file/33006432143.pdfIn PDF document text
  • http://sriraghavendratemple.com/ckfinder/userfiles/files/tilotu.pdfIn PDF document text
  • http://157.230.241.115/image/upload/File/nulepifa.pdfPDF link annotation
  • http://fuzoku-kyujin.jp/ckfinder/userfiles/files/lebutosenom.pdfIn PDF document text
  • http://naturenhuman.com/app/webroot/userfiles/file/kutivunetezob.pdfIn PDF document text
  • http://urjabatteries.in/userfiles/file/disivekoled.pdfIn PDF document text
  • http://pantanalmsnews.com.br/ckfinder/userfiles/files/279864455.pdfIn PDF document text
  • http://bzws.zhanyougame.com/ckfinder/userfiles/files/78200893023.pdfIn PDF document text
  • http://99hospitalitygroup.com/ckfinder/userfiles/files/82349842653.pdfIn PDF document text
  • http://peoplefineart.com/assets/202109/files/20210908070433231567.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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