Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://infrive.ru/uplcv?utm_term=how+to+get+99999+gems+in+hungry+shark+world.
• 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://infrive.ru/uplcv?utm_term=how+to+get+99999+gems+in+hungry+shark+world PDF link annotation

  • https://eric-parnes.shortex.com/ckfinder/userfiles/files/46606599436.pdfIn PDF document text
  • http://jcnjl.com/userfiles/files/diguzixabilovim.pdfIn PDF document text
  • http://antwerp-reefer-tournament.be/argt/files/92838132766.pdfIn PDF document text
  • http://fashioneducation.ru/userfiles/file/35247970830.pdfIn PDF document text
  • https://fruitssupplier.com/app/webroot/img/files/nefazojaxat.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132baab4a5df---ruvibomurugup.pdfIn PDF document text
  • http://aptekainternetowa.net/_mdm_apteki/file/1486081047.pdfIn PDF document text
  • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f14ee0a58---nerepur.pdfIn PDF document text
  • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/50909444342.pdfIn PDF document text
  • http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/balabipalow.pdfIn PDF document text
  • http://surmounttravel.com/userfiles/files/nidafulitakelozovoranimit.pdfIn PDF document text
  • http://goteneplast.se/files/images/file/99620263884.pdfIn PDF document text
  • https://madeinstlucia.com/userfiles/files/vunubesijanunarelebenomo.pdfIn PDF document text
  • https://twr1115.net/files/fckeditor/file/97222399122.pdfIn PDF document text
  • https://kaptenhoki.net/contents/files/kugiveromag.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/jihihvvdhko4u1ahkcahdiroi1/3820125306.pdfIn PDF document text
  • http://fotografiafrancescosomma.com/userfiles/files/vigonewizumonawapif.pdfIn PDF document text
  • http://honderhotel.com/UploadFiles/FCKeditor/20210904011802.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/egpb5g8cjkilaj40e38jvm36pl/rugoguneger.pdfIn PDF document text
  • http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/4903365053.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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