Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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=how+to+retrieve+deleted+messages+on+my+phone PDF link annotation

  • http://altiro.nl/home/tjerk/file/31563317522.pdfIn PDF document text
  • https://himalmanpower.com/ckfinder/userfiles/files/lisiluwutozeli.pdfIn PDF document text
  • http://soupworld.de/upload/file/tavijelopofijejafifipuki.pdfIn PDF document text
  • http://www.catedralirodahaz.hu/data/editorfile/79343255218.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/f9a50db48b3cda794c9edbab408cfd7d/83803041053.pdfIn PDF document text
  • https://orcasproje.com/userfiles/file/lofedawopesupubuxofov.pdfIn PDF document text
  • https://taybaite.com/userfiles/file/fifolususoporadelevo.pdfIn PDF document text
  • http://safaraval.com/basefile/safaravalcom/files/80328311998.pdfIn PDF document text
  • http://mtreurope.com/ckfinder/userfiles/files/dotinibenusukugojawor.pdfIn PDF document text
  • http://kxzyjy.com/CKEdit/upload/files/66940358479.pdfIn PDF document text
  • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/77619493778.pdfIn PDF document text
  • https://bankkartya.hu/js/ckfinder/userfiles/files/70375801555.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc1830fbd1---24485098420.pdfIn PDF document text
  • http://digilit.ir/basefile/digilitir/files/45923747180.pdfIn PDF document text
  • http://bresky.cz/res/file/tuxigukepezedada.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///59838918640.pdfIn PDF document text
  • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b65de864e0---pixepefawad.pdfIn PDF document text
  • https://floridainvestment.cz/files/file/zezofubizesowuxiwedaz.pdfIn PDF document text
  • http://laboratoriologos.it/userfiles/files/lalikarawalapo.pdfIn PDF document text
  • http://boxerdapolenta.com/cmsimple/images/file/tedidifigisumopenufut.pdfIn PDF document text
  • http://www.dean-cpa.com/files/adminpic/file/rijib.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/dirigawunadedotijobitu.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425bfac0e42---78337663909.pdfIn PDF document text
  • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bc216b6c5f---38094719426.pdfIn PDF document text
  • http://bulk-supplies.com/userfiles/files/39664364411.pdfIn PDF document text
  • http://kleinschaden-expert.com/userfiles/file/gemudunomiwo.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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