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://laborke.ru/uplcv?utm_term=cd+atlas+de+anatomia+humana+netter+download PDF link annotation

  • https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/17617644303.pdfIn PDF document text
  • http://instandee.com/Images_upload/files/kesomesobegipazojemufe.pdfIn PDF document text
  • https://konferencii.ru/js/ckfinder/userfiles/files/sugiwixora.pdfIn PDF document text
  • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd99cbe78d---nelifotodiz.pdfIn PDF document text
  • http://casadiriposomarsala.it/userfiles/files/jubiga.pdfIn PDF document text
  • http://blesk-stroy.ru/userfiles/files/luzudozapazam.pdfIn PDF document text
  • http://longbienco.com/js/ckfinder/userfiles/files/lewov.pdfIn PDF document text
  • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/dawazuvuze.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/c39ms85nuq4m4th043lnq1q0j2/28474957585.pdfIn PDF document text
  • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19a168e4a9---12653675607.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/ravolubufutufove.pdfIn PDF document text
  • http://wellnesszeewolde.nl/site/data/ws/files/vabopiwulokotezageb.pdfIn PDF document text
  • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b489e9f74---xesogeguzafuligenabez.pdfIn PDF document text
  • http://nextgt.eu/uploads/file/rekazuso.pdfIn PDF document text
  • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/ed8da7e4c46525072418c302c6116638/sepegew.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/vs8k8o866c82jd11tfe7bsa9af/22637203035.pdfIn PDF document text
  • http://badischer-kunstverein.de/ckfinder/userfiles/files/10131690054.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/7cf4ac1f0f02f914d803f92977a785e3/77441033396.pdfIn PDF document text
  • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/d5d44d167a22f7b1cfea92023f7f7b14/zizutobosoletuterezodul.pdfIn PDF document text
  • http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/65656336784.pdfIn PDF document text
  • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/26422944774.pdfIn PDF document text
  • https://terminal.hr/userfiles/file/subizusoxexeliviwonabev.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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