Malicious PDF — malware analysis report

Heuristics 9

• 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 0 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://crewmak.ru/uplcv?utm_term=ldplayer+genshin+impact+not+compatible PDF link annotation

  • http://charmingcurls.se/upload/file/8824385112.pdfIn PDF document text
  • https://fontaine-eva.fr/userfiles/files/puvemigegujigilu.pdfIn PDF document text
  • http://dailycan.com/userfiles/files/bulopaxutatusuzutafu.pdfIn macro / runtime command snippet
  • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/34167190693.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf3d8394f0---80655035878.pdfIn PDF document text
  • https://anhhuynoithat.com/asset/files/xadofutizegaxafezijana.pdfIn PDF document text
  • http://wellfoto.cz/pictures/files/69880992471.pdfIn PDF document text
  • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369b1a3a0c6---37359164985.pdfIn PDF document text
  • https://sadhankendra.org/erc/media/14891542057.pdfIn PDF document text
  • http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/64818968653.pdfIn PDF document text
  • http://ciba.lv/uploaded/file/4798309345.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/64714dc9f249ba7d269197e3c3e4393d/81586165706.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145f67e5dd55---mowogef.pdfIn PDF document text
  • http://kimbuunguyen.com/uploads/userfiles/file/papoxibivumosusokogudib.pdfIn PDF document text
  • https://begili.com/uploads/image/files/zibutomuwilirejepopejodiw.pdfIn PDF document text
  • https://gemicilojistik.com/userfiles/upload/file/vatumofamanexiloxebuzibu.pdfIn PDF document text
  • https://www.ksmt.edu.np/assets/ckfinder/userfiles/files/fajavo.pdfIn PDF document text
  • https://loppisidjupdalen.se/images/uploaded/file/7346914835.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/2sluvgumjfuaahkccurf4s2rhu/87745075361.pdfIn PDF document text
  • http://etspak.com/survey/userfiles/files/piposulitinorod.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/56867530880.pdfIn PDF document text
  • https://chungangroup.com/uploads/files/202109252113515553.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/375bba386dcf02f872d238e4f88f09b8/17533921796.pdfIn PDF document text
  • https://fontaine-eva.fr/In 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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