Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 2 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://wastran.ru/uplcv?utm_term=how+long+can+cooked+chicken+stay+out PDF link annotation

  • http://as-eng.biz/userfiles/file/junovawog.pdfIn PDF document text
  • http://sinoscaform.com/upload/ckimg/files/202109080909383901.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/cmddb7j5cs7dvl6d6lvsa3ieev/duvijuwi.pdfIn PDF document text
  • https://clarkfamilybuilders.com/home/clark/public_html/ckfinder/userfiles/files/45007082648.pdfIn PDF document text
  • http://netcentricnj.com/ckfinder/userfiles/files/lulujuripuvaseratipiz.pdfIn macro / runtime command snippet
  • https://leganordavigliana.it/uploads/file/8084946837.pdfIn PDF document text
  • https://mchs.kz/userfiles/File/4270880663.pdfIn PDF document text
  • https://priscar.com/documents/files/74438742511.pdfIn PDF document text
  • http://phukhoabacninh.com/images/files/77050740869.pdfIn PDF document text
  • http://baigeleather.com/userfiles/file/jufalekikezikomejomaxe.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fef8d1ad0---28762466743.pdfIn PDF document text
  • http://alimentosldm.com/userfiles/file/pinobemiworusakewofigosap.pdfIn PDF document text
  • http://dhleisure.com/ckupload/files/sixorulukodawifo.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/58f466f81a6dd028c7c493d56d4ab951/duvedozu.pdfIn PDF document text
  • https://inprovitperu.com/ckfinder/userfiles/files/wonuvitafiwewojosi.pdfIn PDF document text
  • http://btfa.tw/upload/files/88911080584.pdfIn PDF document text
  • http://daearesort.com/FileData/ckfinder/files/20210911_F42B7378A5A92274.pdfIn PDF document text
  • https://giolog.biz/images/bulk_images/files/67670096724.pdfIn PDF document text
  • http://dija.lv/public/userfiles/file/jirip.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612eaf6200e37---kubali.pdfIn PDF document text
  • https://myphi.biz/nbloom/fckuploads/file/88542178713.pdfIn PDF document text
  • http://md-servicios.com/userfiles/file/46960281479.pdfIn PDF document text
  • http://lexen.ca/userfiles/files/jeroselo.pdfIn PDF document text
  • http://d-innovation.com/upload/files/fobajizul.pdfIn PDF document text
  • http://devveb.net/userfiles/file/27067577517.pdfIn PDF document text
  • https://clarkfamilybIn 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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