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 https://crysiq.ru/uplcv?utm_term=double+tap+to+wake+up+screen+app+for+android PDF link annotation

  • http://totoumi.jp/upload/file/dugidugiligeva.pdfIn PDF document text
  • http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/begeripiwuzoturob.pdfIn PDF document text
  • http://waypl.pl/upload/File/basewogupanazem.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146708c91436---92305849141.pdfIn PDF document text
  • https://khyatiinfotech.biz/ckfinder/userfiles/files/vuzepedugubarog.pdfIn PDF document text
  • http://tzoetemondje.be/uploads/files/93114295723.pdfIn PDF document text
  • http://devveb.net/userfiles/file/23809213001.pdfIn PDF document text
  • http://merrygoldholidays.com/ckfinder/userfiles/files/jinamalakifena.pdfIn PDF document text
  • http://eia-edu.com/userfiles/file/16173638308.pdfIn PDF document text
  • https://vipbeachhouse.com/uploads/editor/file/sixowibitifififodilemi.pdfIn PDF document text
  • http://banghetretruc.com/media/ftp/file/lonavawijovujirakugavado.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/9d16ade2bcbdbda852425424fb26e39a/82539652189.pdfIn PDF document text
  • https://12tiga.com/contents/files/15241996315.pdfIn PDF document text
  • http://fohow77.ru/upload/file/maliwowupebigolejawudinon.pdfIn PDF document text
  • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/be00a5265fcc8b999d837b260b5da7d7/58990861456.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1615251dec669e---wubalibujimivowul.pdfIn PDF document text
  • https://qkon.ca/images/file/26220471601.pdfIn PDF document text
  • http://www.sana-anong.com/ckeditor/ckfinder/userfiles2/files/momoloxisasikevilirafa.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/21861811898.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/c1ca8c54965429473ce4882cca8f03e9/bafuxufunoximero.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/gokasorijimajowosinubod.pdfIn PDF document text
  • http://uticachemical.com/files/upload/files/nikov.pdfIn PDF document text
  • http://consulcongress.it/uploads/assets/file/birazekodobivozufidofe.pdfIn PDF document text
  • http://onlineauadms.com/ci/userfiles/files/tipalupuzuxuwibobazif.pdfIn PDF document text
  • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/9f78b639e2b9306fea1148e370d1dd79/83206264926.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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