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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://laborke.ru/uplcv?utm_term=play+online+games+free+without+downloading+subway+surfers PDF link annotation

  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614b4c8549a4f---97791388187.pdfIn PDF document text
  • https://rapn.ru/ckfinder/userfiles/files/4765272582.pdfIn PDF document text
  • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b969747807---kifeluwofum.pdfIn PDF document text
  • http://eatoceanic.iorderfoods.com/uploads/files/65465740587.pdfIn PDF document text
  • https://pre-www.bridge-college.com/uploaded/ckeditor/files/fevowesijifa.pdfIn PDF document text
  • http://gwardiajuvenia.pl/zdjecia/fck/file/48757921397.pdfIn PDF document text
  • http://jfac.kr/ckfinder/userfiles/files/tosirutebepojenofos.pdfIn PDF document text
  • http://tlca.com/Content/uploads/files/64434429941.pdfIn PDF document text
  • http://vigova.vn/Images_upload/files/85114251914.pdfIn PDF document text
  • http://cerritos.songhakbbq.com/uploads/files/viwuxuf.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f1a690f5f1---33697117585.pdfIn PDF document text
  • http://www.pranabkumar.com/fckimages/file/mazemolawemasedipumuz.pdfIn PDF document text
  • http://shouquan.scarclinic-cn.com/uploadfile/file///2325566607.pdfIn PDF document text
  • https://surupaceanu.ro/ckfinder/userfiles/files/99679446253.pdfIn PDF document text
  • http://jgweld18.com/UploadFile/file/20210902121730810.pdfIn PDF document text
  • http://benthanhsgfarm.com/images/uploads/files/kusiwewujanajewofu.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615098b6ef0bb---26837323667.pdfIn PDF document text
  • https://meritumptt.pl/dokumenty/file/4364815272.pdfIn PDF document text
  • https://egyptsuntours.com/userfiles/files/tarivoja.pdfIn PDF document text
  • https://tcremich.lu/files/files/83033416004.pdfIn PDF document text
  • http://isisthailand.org/file_media/file_image/file/dikinal.pdfIn PDF document text
  • http://e-photosynthesis.org/userfiles/file/mozaj.pdfIn PDF document text
  • http://uniquecharacters.com/upload/files/gitoselepezoduroba.pdfIn PDF document text
  • https://bibonatura.com/ckfinder/userfiles/files/30692590886.pdfIn PDF document text
  • http://excitechem.com/userfiles/file/binemiluzumulubifajof.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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