Malicious PDF — malware analysis report

Heuristics 10

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Fake CAPTCHA with command-running instructions critical SE_FAKE_CAPTCHA_CLICKFIX
  Document combines fake CAPTCHA or human-verification language with instructions to paste or run a command — a high-confidence ClickFix pattern
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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.
• 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://wirut.co.za/XSRYdR1H?utm_term=kali+linux+light+64+bit PDF link annotation

  • http://kledingindex.nl/images/uploads/sasesepod.pdfIn PDF document text
  • https://gancza-yacht.pl/userfiles/file/radugigutudazazirapudi.pdfIn PDF document text
  • http://mybyblos.com/userfiles/file/36144443033.pdfIn PDF document text
  • https://petrovsky14.ru/docs/files/kejilaxeganisilowut.pdfIn PDF document text
  • http://camberwelltaxi.com/survey/userfiles/files/64949330099.pdfIn PDF document text
  • https://www.thaiahpa.com/flash/files/68996711775.pdfIn PDF document text
  • http://e-menu.hu/editor_up/70143978924.pdfIn PDF document text
  • https://securitydm.eu/slicice/file/40617660808.pdfIn PDF document text
  • http://hepiran.com/cache/fck_files/file/gidovamaguxagato.pdfIn PDF document text
  • http://happyland-nsk.net/ckfinder/userfiles/files/68196048810.pdfIn PDF document text
  • https://questyme.com/userfiles/file/bulabelazuzadolodopev.pdfIn PDF document text
  • http://abrushfire.com/kcfinder/upload/files/jasedabanopub.pdfIn PDF document text
  • http://aorganboys.handyfriendship.com/upload/files/74950461118.pdfIn PDF document text
  • https://www.tailormadeholidayspt.com/kcfinder/upload/files/narurobukovipokusiwa.pdfIn PDF document text
  • http://xn--80apabice8bfaf.net/kcfinder/upload/files/98676681832.pdfIn PDF document text
  • https://taybaite.com/userfiles/file/58520845012.pdfIn PDF document text
  • http://www.volteram.com/kcfinder/upload/files/71650666541.pdfIn PDF document text
  • https://dental-essence.com/admin/userfiles/file/75024093054.pdfIn PDF document text
  • https://intrigantka.ru/images/userfiles/file/xogexe.pdfIn PDF document text
  • http://zjleiou.com/images/upload/File/zikuxi.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162097e262e1---59912275770.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614b9096de5fb---82489594608.pdfIn PDF document text
  • http://www.bluewhaleline.com/image/upload/File/fumimanusujemerabi.pdfIn PDF document text
  • https://insp.biz/img/file/4675084541.pdfIn PDF document text
  • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/ce19b3b810604068f55237365fe2d803/36135790842.pdfIn PDF document text
  • https://cottonweb.net/userfiles/file/8149697779.pdfIn PDF document text
  • https://archive.kali.org/archive-key.ascIn 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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