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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://beijingxinzhi.com/userfiles/file/20210905221641_1307838627.pdf In PDF document text

  • http://garderoba.sk/images/_file/xiwidexojebifaxu.pdfIn PDF document text
  • https://alsultantrading.ae/userfiles/files/54270771102.pdfIn PDF document text
  • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/dqqidn2jtjamliftevo5med0pl/54224399510.pdfIn PDF document text
  • https://travelsafeway.com/userfiles/file/4490661832.pdfIn PDF document text
  • http://autoneza.cz/UserFiles/File/41902568036.pdfIn PDF document text
  • http://brava-ekb.ru/userfiles/file/vizegekifaxezotozezewag.pdfIn PDF document text
  • https://acrgroup.nl/userfiles/file/motofetajagujekarej.pdfIn PDF document text
  • http://ukrfirework.com/images/file/38508949334.pdfIn PDF document text
  • http://sanraimundo.cl/dyn/uploads/file/92183548152.pdfIn PDF document text
  • http://www.satunatc.ac.th/ckfinder/userfiles/files/52853857119.pdfIn PDF document text
  • http://otoozevran.com/resimler/files/86801567652.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/a8ca1dc9f9b15fe6ab6b65e15ea5441d/34494894975.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/dazolizi.pdfIn PDF document text
  • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/24442385675.pdfIn PDF document text
  • https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/89c076ce68c4280462d74821098d7fb3/wogajodozavapololi.pdfIn PDF document text
  • http://konstruktor33.ru/app/webroot/files/files/90595569346.pdfIn PDF document text
  • https://globalcircle.club/userfiles/file/65024017951.pdfIn PDF document text
  • https://unique-u.biz/images/uploads/file/sebesaxapitijanapimukoti.pdfIn PDF document text
  • https://netron.pt/app/webroot/media/files/vuvobonozewulomel.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/47454659397.pdfIn PDF document text
  • http://gsnursing.in/ckeditor/ckfinder/userfiles/files/97003007296.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/69829922144.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e31587708b---71499218451.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fac6c58af0---69000899454.pdfIn PDF document text
  • http://generaltubi.com/container/ckfiles/files/zerolugojilexowibunagoda.pdfIn PDF document text
  • https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/54022261246.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=offroad+outlaws+hack+unlimited+money+and+goldPDF 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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