Malicious PDF — malware analysis report

Heuristics 7

• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://irlanc.ru/uplcv?utm_term=how+do+i+sign+out+of+my+hotmail+account PDF link annotation

  • https://www.xyoaa.org/sites/default/files/files/33491071252.pdfIn PDF document text
  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/64a2b5ff564a36fe87148141f846ced4/55224595002.pdfIn PDF document text
  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/gapbtkqj8c9baqunkrjf4o3ea7/zenekudagikumube.pdfIn PDF document text
  • https://noble-program.site/js/ckfinder/userfiles/files/nemavepapujow.pdfIn PDF document text
  • http://nktrading.qa/file/files/zosolofituvamomobepiwabor.pdfIn PDF document text
  • http://sallytour.com/FileData/ckfinder/files/20210917_8EFD0DBB9732D093.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ee0ff2bf37---88477528960.pdfIn PDF document text
  • http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/57498039617.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/33711641024.pdfIn PDF document text
  • http://disonde.com/filespath/files/20210907193626.pdfIn PDF document text
  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/ai3rlk00og3geo2cb587ke6p8g/84805614495.pdfIn PDF document text
  • http://medob.org/SITE/files/editor/file/defegebitubi.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/bofubibepivisivepozifop.pdfIn PDF document text
  • http://g-shocktou.com/user_file/file/fifuxof.pdfIn PDF document text
  • https://vico-immobilien.com/ckfinder/userfiles/files/rifokin.pdfIn PDF document text
  • http://alpanelektrik.com/depo/sayfaresim/file/42645556728.pdfIn PDF document text
  • https://callmarkinvestments.fortunekenya.com/callmark/files/55238096793.pdfIn PDF document text
  • http://kurskodkb.ru/page_edit/_samples/userfiles/files/nezifakuwivejokifubinosoz.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161367b22f34fa---pemukaxuwaxigogonajev.pdfIn PDF document text
  • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7ea7e64c20664c78291f143d275b54bf/ralutovifuvabedetelut.pdfIn PDF document text
  • http://www.badischer-kunstverein.de/ckfinder/userfiles/files/8122440305.pdfIn PDF document text
  • http://studionegrelli.it/userfiles/files/kojokobovubexise.pdfIn PDF document text
  • http://nextlab-semi.com/files/fckeditor/file/vafunej.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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