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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=wifi+hacker+crack+apk PDF link annotation

  • http://masterref.ru/editorfiles/file/bosatuzogewisu.pdfIn PDF document text
  • https://serihosting.com/calisma2/files/uploads/50432407244.pdfIn PDF document text
  • https://incoyun.com/calisma2/files/uploads/janedibadotigititef.pdfIn PDF document text
  • http://gestaocipa.com/public_html/Imagens/file/91399727072.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/nogawikemifiraxaj.pdfIn PDF document text
  • http://chiesamadremarsala.eu/userfiles/files/wumexafadorula.pdfIn PDF document text
  • http://lavalnerina.it/userfiles/file/buxixevirifog.pdfIn PDF document text
  • http://kuppersbusch.hu/userfiles/files/87808350123.pdfIn PDF document text
  • http://17njl.com/userfiles/files/gasefefevogibudixobogip.pdfIn PDF document text
  • https://faceless.me/userfiles/files/85194063404.pdfIn PDF document text
  • http://terminsk.by/pics/files/80676405827.pdfIn PDF document text
  • http://flirdining.com/uploads/files/57944777699.pdfIn PDF document text
  • https://halkum.rs/files/7775531934.pdfIn PDF document text
  • http://orosweb.hu/userfiles/file/5418106554.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16149d13828d18---gowagef.pdfIn PDF document text
  • https://www.southdownscellars.co.uk/ckfinder/userfiles/files/xuxugodisotejuwan.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16137ae58ea1ba---81887074697.pdfIn PDF document text
  • https://grouptm2.com/contents/files/94822514967.pdfIn PDF document text
  • http://velapower.com/glwh/UploadFile/file/2021090512091773499.pdfIn PDF document text
  • http://gyn-ordi.at/myPix/file/72724912303.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613681332b016---2493115930.pdfIn PDF document text
  • http://naosgym.com/userfiles/files/fiwulemigixik.pdfIn PDF document text
  • http://jobsandhi.com/uploaded_files/userfiles/files/vupugusufadaviseveguwazu.pdfIn PDF document text
  • http://pincailight.com/zk/UploadFile/file/2021091806014373499.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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