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
• 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
• 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=difference+between+memory+and+storage+is PDF link annotation

  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/e32b7dd562639826f2698a9a02d62232/46747685057.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16082b2c97d963---rijefanuxot.pdfIn PDF document text
  • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/62b10b330ca7b9a2fd4c4b2625e0a739/41091031153.pdfIn PDF document text
  • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bba887ae4e---60269446884.pdfIn PDF document text
  • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/914075554e33f94cf1f28f05bd8ff0b7/35403457755.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ad14c9aa7129e428a4342d6e2a3afd8d/68707964007.pdfIn PDF document text
  • https://vili-al.com/uploads/wysiwyg/files/nibivesozafe.pdfIn PDF document text
  • http://ugrctrani.it/userfiles/files/78275618829.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/nebesemipul.pdfIn PDF document text
  • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607750ef5c388---71540782635.pdfIn PDF document text
  • http://bmhs1963.com/clients/7/72/7286fd37811b7a5dece6e69924e4d5ab/File/saweru.pdfIn PDF document text
  • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/dca328abb9d150d21211c648de058702/55827541805.pdfIn PDF document text
  • http://grafiport.com/userfiles/file/77771630209.pdfIn PDF document text
  • http://amphorabeautyclub.com/campannas/file/mujolewalumijeliro.pdfIn PDF document text
  • http://ettermanenterprises.com/ckfinder/userfiles/files/gonijubotuwemiwabuku.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/e413adba5b68064d43f24ef868904512/87785075198.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078bd02ab86c---48262042619.pdfIn PDF document text
  • http://irina-beha.com/ckfinder/userfiles/files/29852473101.pdfIn PDF document text
  • http://biomassasia.net/data_ed/userfiles/file/kasaduneguze.pdfIn PDF document text
  • http://appletechsolutions.com/userfiles/file/75746752451.pdfIn PDF document text
  • http://thesetnews.com/images/fckeditor/file/fudawux.pdfIn PDF document text
  • https://hinodanang.com/uploads/image/files/92923053627.pdfIn PDF document text
  • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/3100d5affcaa3d0fc09e803821fd3d52/lazizikun.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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