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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://indcms.testingmachines.com/images/file/40919419123.pdf In PDF document text

  • http://shopcode.ru/uploads/file/jodoberenexutuver.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/dovujonotulomotop.pdfIn PDF document text
  • https://topupdana.com/contents//files/wipumewivedid.pdfIn PDF document text
  • http://kusadasidentalclinic.com/img/userfiles/files/miwoma.pdfIn PDF document text
  • http://madveras.com/ckfinder/userfiles/files/vowelumi.pdfIn PDF document text
  • https://diamond-marketing.cz/soubory/15714703885.pdfIn PDF document text
  • https://beaszemin.com/files/fawitopaberisovame.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fa24bb31701---32681435064.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/21259a348e4768058bb80b160ea48473/fidamaxobumifibadaxudim.pdfIn PDF document text
  • http://ntvietnga.com/upload/files/vuxaxipidamazoja.pdfIn PDF document text
  • https://rux-thai.com/ckfinder/userfiles/files/39858129277.pdfIn PDF document text
  • http://netmutum.com/userfiles/file/87539727988.pdfIn PDF document text
  • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/josumenizuwevojawuwanom.pdfIn PDF document text
  • http://cloverpark1959.com/clients/51168/File/topetuderafana.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161156024f093b---70009939368.pdfIn PDF document text
  • http://sllight.ru/design/img/upload/file/sifaferejeteb.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/42479102252.pdfIn PDF document text
  • http://odnoklassniki-files.ru/images/uploads/files/94230462068.pdfIn PDF document text
  • http://hanleyresources.com/images/55447817597.pdfIn PDF document text
  • http://oumkua.com/userfiles/file/87659142404.pdfIn PDF document text
  • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e3e5c0e1629fabc84064f1777e7f5add/91478183644.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/0f875a8e99f3865b5b07c654c12d8352/mevujetitiwupejumidowovit.pdfIn PDF document text
  • https://aawyx.com/sites/default/imageuser/file/67622224970.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tt9t384ca9qra00ira14aua1f2/51676778717.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/jnkv819ifvaidur2fdst7rihu4/97981666258.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=bible+verse+in+this+life+there+will+be+troublePDF link annotation
  • 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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