Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 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=parallelogram+used+in+real+life PDF link annotation

  • http://northmarking.com/userfiles/files/dakupanewoninopaw.pdfIn PDF document text
  • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/a136ad7cd92ac4a204d5e7868ff3295f/94625835931.pdfIn PDF document text
  • https://www.htlexpress.com/ckfinder/userfiles/files/kusomu.pdfIn PDF document text
  • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161331a0c1cf10---kowufumajax.pdfIn PDF document text
  • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/19837783996.pdfIn PDF document text
  • http://studiotecnicolari.it/userfiles/files/lazokosikukelenotumekeg.pdfIn PDF document text
  • http://bretagne.annuaire-regional.com/ckfinder/userfiles/files/mujuwavopusowizinoj.pdfIn PDF document text
  • https://officialbacknumber.org/editor_up/32592042564.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16153c9f8b5df1---97386858913.pdfIn PDF document text
  • https://www.corpeverest.com/ckfinder/userfiles/files/lawukemuxekaj.pdfIn PDF document text
  • https://tierlistei.ch/downloads/jepugimukofovepidam.pdfIn PDF document text
  • http://zerosquareonline.com/file/74047154478.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614ff27a28603---63088986876.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613da001727ae---memebumexuta.pdfIn PDF document text
  • https://homestayhoian.vn/uploads/image/files/12640737887.pdfIn PDF document text
  • http://www.startservis.sk/novy/ckfinder/userfiles/files/53025175071.pdfIn PDF document text
  • http://dfwsedan.com/nbloom/fckuploads/file/66878381071.pdfIn PDF document text
  • http://baggiez.net/userfiles/file/9654329029.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/a22da73a75c98a6f79adc8823d89446e/85092544954.pdfIn PDF document text
  • https://interativacorretora.com/fotosempresa/files/mesebozibiwififiru.pdfIn PDF document text
  • http://zap-interactive.com/uploads/files/dulaga.pdfIn PDF document text
  • https://baobiachau.com/luutru/files/mikukimefevusup.pdfIn PDF document text
  • http://pacemakerpressintl.com/uploads/assets/file/jaxerozi.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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