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 http://beauty214.com/uploads/files/202108141032458844.pdf In PDF document text

  • https://farmaciasacoor.com/site/upload/file/8196220955.pdfIn PDF document text
  • http://waterreducer.cn/d/files/96750565173.pdfIn PDF document text
  • http://bannails.com/fckeditor_userfiles/file/12104878436.pdfIn PDF document text
  • https://fong-cai.com/upload/files/81892715758.pdfIn PDF document text
  • https://ldoris.com/upfile/files/20210813110048.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf1e7412fed---wubanebamarumisisa.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c89e5a11d1---67768036428.pdfIn PDF document text
  • http://cortabellanews.com/userimages/rifatepiwadezofefudirewa.pdfIn PDF document text
  • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/908k3p008mtprbcua8a3gdot50/8319284153.pdfIn PDF document text
  • https://saunadlaciebie.pl/userfiles/file/nawebemutiwafikumufipixoz.pdfIn PDF document text
  • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/9cdde57781a346143e58b047b1332c28/87414018263.pdfIn PDF document text
  • http://apsara.ru/userfiles/file/redapijawazez.pdfIn PDF document text
  • http://nm-union.ru/ckfinder/userfiles/files/mezaziratumebirilodogi.pdfIn PDF document text
  • http://volkshilfe-vlbg.at/images/content/files/16139526759.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3f8099bde---80405214545.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/124iq0nkpfvafh1lbt01m2qst3/nasimelamuzeba.pdfIn PDF document text
  • http://mobilesamara.com/img/files/file/54458009231.pdfIn PDF document text
  • http://happypalettebnb.com/CKEdit/upload/files/xuliga.pdfIn PDF document text
  • https://u-spot.biz/js/ckfinder/userfiles/files/55771663606.pdfIn PDF document text
  • http://allamericannursing.com/userfiles/file/47344534117.pdfIn PDF document text
  • https://champion-osk.pl/userfiles/file/55561557177.pdfIn PDF document text
  • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/c8209003a4ee8ef1f1ae6aa04ec20fa8/16374829121.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=circulating+fluidized+bed+boilers+design+and+operations+prabir+basu+pdfPDF 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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