Malicious PDF — malware analysis report

Heuristics 7

• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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 https://krisoc.ru/uplcv?utm_term=export+apk+from+flutter PDF link annotation

  • http://miroslaws.com/ckfinder/userfiles/files/29759315078.pdfIn PDF document text
  • http://wumag.pl/userfiles/file/kikivuseb.pdfIn PDF document text
  • http://barsugo.com/ckfinder/userfiles/files/pakurakeruwigugutef.pdfIn PDF document text
  • https://inijariku.com/ckfinder/userfiles/files/sinujojolewatipulalila.pdfIn PDF document text
  • http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/tuxebadedizemuzigin.pdfIn PDF document text
  • https://pensiuneavalentina.ro/app/webroot/file/darajoxononivugijolufema.pdfIn PDF document text
  • https://ku4ysk-9lgp4y.com/contents/files/ruwasoguzuva.pdfIn PDF document text
  • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210923_EEACEA7332DFB69C.pdfIn PDF document text
  • http://michaelwilliamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/netikubino.pdfIn PDF document text
  • http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/58097347178.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbf9ac821c---petibugatuwodexefotagune.pdfIn PDF document text
  • http://asijskepotraviny.cz/files/file/38357151780.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdafb150f3---60029066305.pdfIn PDF document text
  • https://oreopay58.com/ckfinder/userfiles/files/legozunefok.pdfIn PDF document text
  • https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/rukizupo.pdfIn PDF document text
  • http://oticonshop.net/ckfinder/userfiles/files/60594328977.pdfIn PDF document text
  • http://sherwoodonionfestival.com/ckfinder/userfiles/files/vigawapogazovuvuvafijano.pdfIn PDF document text
  • https://terminarz.online/kosmetyczka/krakow/files/loduwetiwiwojenuzalidixi.pdfIn PDF document text
  • https://praktijk-fix.nl/userfiles/image/file/javekinalelet.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/0a5ba14a3d260bc3f20f7a289bea862b/56983299164.pdfIn PDF document text
  • https://by-express.com/upfiles/editor/files/87120800900.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1614c9985db08d---dinapugesavome.pdfIn PDF document text
  • https://bursac.net/userfiles/file/20877743016.pdfIn PDF document text
  • http://penzionnakrizankach.cz/ckfinder/userfiles/files/noxofesuxakomuburaw.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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