Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 69 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://labelmarket.pl/data/file/83628690803.pdf In PDF document text

  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/c4133fa1a0de1f28da1fac174d5fe759/35061323424.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/29209359114.pdfIn PDF document text
  • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c0e25c9a6---volalifu.pdfIn PDF document text
  • https://kompaspt1.com/contents//files/95308679533.pdfIn macro / runtime command snippet
  • https://eventpro-kontraktorpameran.com/uploaded/files/jedajelaloti.pdfIn PDF document text
  • http://www.asslar.de/downloads/zovopakisipulemuva.pdfIn PDF document text
  • http://paitoonbox.com/userfiles/files/nexot.pdfIn PDF document text
  • http://cerezolorente.com/files/cerezolorente/_repo/file/36493311488.pdfIn PDF document text
  • http://www.travelwithtaangoo.com/img/file/kematulowowutewinijalo.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c5c1361f2a---14565602856.pdfIn PDF document text
  • http://gdaniec.com/upload/files/87002954061.pdfIn PDF document text
  • http://chiangmai-clean.com/user_img/files/menobuxifu.pdfIn PDF document text
  • http://amesonsofallen.org/clients/53156/File/56039171805.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa27bb7020---17716977889.pdfIn PDF document text
  • http://vita24h.com/uploads/userfiles/file/54232581234.pdfIn PDF document text
  • https://antae.be/app/webroot/uploads/file/34558546840.pdfIn PDF document text
  • http://1yunnan.com/ckfinder/userfiles/files/61755711809.pdfIn PDF document text
  • https://yifff.se/userfiles/file/lojem.pdfIn PDF document text
  • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/14qovl1cjnncjljar3k8gp3jed/jexidasetapavepujimo.pdfIn PDF document text
  • http://actlogistic.vn/upload/editor/files/bakonizekazowixaketumej.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cdc7e4f170---kajefekulugunupawupi.pdfIn PDF document text
  • http://goodlife88.com/uploads/files/27000170686.pdfIn PDF document text
  • http://www.majorisinvesIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=applied+mathematics+for+business+and+economics+pdfPDF link annotation
  • 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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