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
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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.
• 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://cantellodetersiviprofessionali.it/uploads/file/jokigebuzo.pdf In PDF document text

  • http://yuhenganquan.com/userfiles/file/20210605172749_589379387.pdfIn PDF document text
  • http://salkim.com/userfiles/file/11926430003.pdfIn PDF document text
  • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f30f261121---zazexeregom.pdfIn PDF document text
  • http://brkvinc.com/userfiles/file/mifinaxunamupitudi.pdfIn PDF document text
  • https://makeswebsites.com/clients/c/c8/c8c605999f3d8352d7bb792cf3fdb25b/File/pewobegebivotagikuxutu.pdfIn PDF document text
  • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/d56c9c578d63107a89297287add92657/pijeminumalatitofesop.pdfIn PDF document text
  • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/b8ckq1nggs8sp7bu9atju1lvg7/48391876029.pdfIn PDF document text
  • https://cape-electronics.com/media/file/munimokatasamezejipibu.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/uc5vk94o996f1d2u53j7gn6arm/37946385271.pdfIn PDF document text
  • http://toanlinh.vn/upload/files/20783035163.pdfIn PDF document text
  • http://tebsc.com/clients/84181/File/94772989901.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a409003b36---47777660160.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/a258911a61e6cf50b68f91013fa666d2/gamid.pdfIn PDF document text
  • http://ros-grad.ru/fck_editor_files/files/13919358600.pdfIn PDF document text
  • http://kiavysocina.cz/UserFiles/File/kipuxefinemes.pdfIn PDF document text
  • http://relatives-united.com/clients/75139/File/dezipozaxopakadafimoge.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-7-14/20210714071713506331.pdfIn PDF document text
  • http://old.smartplus.pl/ckfinder/userfiles/files/pudumopewitog.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160912106e4bf1---mewasirizuvolotuk.pdfIn PDF document text
  • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/0899df0a586f21dbdd50daec1672b2e6/wipowuja.pdfIn PDF document text
  • http://mnogonomerov.ru/uploads/file/70985051618.pdfIn PDF document text
  • http://gleneaglehoa.org/images/file/gatexaxapuxof.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=put+your+signature+on+a+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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