Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://irlanc.ru/uplcv?utm_term=crack+pdf+password+using+cmd PDF link annotation

  • http://terralis.eu/catalogue_dynamique/file/nupafilidodesoxibow.pdfIn PDF document text
  • https://institut-arabe.org/ckfinder/userfiles/files/gidipopetorawidanul.pdfIn macro / runtime command snippet
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c9bca36ba---18966972115.pdfIn PDF document text
  • https://bc2000.order-pro.com/ckfinder/userfiles/files/60003878768.pdfIn PDF document text
  • http://dolekkoyum.com/admin/UserFiles/file/makigilujuvo.pdfIn PDF document text
  • https://membermimpi.com/contents/files/25260299905.pdfIn PDF document text
  • https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/82832793383.pdfIn PDF document text
  • http://locthanhwindow.com/img_duhoc/files/59876428350.pdfIn PDF document text
  • https://peoplehelppeople.net/uploads/File/3791840545.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/6ju4sfkn6tgllpuhdgrgoeead1/1953514292.pdfIn PDF document text
  • https://cissud.com/uploads/ck_editor/files/fedesufadiwelafus.pdfIn PDF document text
  • https://hyundainhapkhau.vn/upload/files/zafilipavikulej.pdfIn PDF document text
  • https://detectagsafety.com/ckfinder/userfiles/files/86350670887.pdfIn PDF document text
  • https://nirkongrp.com/ckfinder/userfiles/files/79886484602.pdfIn PDF document text
  • https://zohopin.com/calisma2/files/uploads/palar.pdfIn PDF document text
  • https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/pisipir.pdfIn PDF document text
  • http://kondicionery-elektrostal.ru/upload_picture/file/bopuforuxosuvilezusaxiba.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/20913949149.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1b068b65ec5787a682ccfc6cfa69d613/77320670380.pdfIn PDF document text
  • http://clinicaveterinariaalbese.eu/userfiles/files/xoboz.pdfIn PDF document text
  • https://www.sibirprokat.ru/ckfinder/userfiles/files/82174441017.pdfIn PDF document text
  • http://taispacedesign.com/upload/files/kuxila.pdfIn PDF document text
  • https://castilloexterior.org/ckfinder/userfiles/files/95955695962.pdfIn PDF document text
  • http://angelcabrera.com/FCKfiles/file/xetexuwevebazudamibi.pdfIn PDF document text
  • http://terralis.eu/catalogue_dynamique/file/nupafilidodeIn macro / runtime command snippet
  • 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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