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
• 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.
• 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://e-uchebnici.com/img/file/31815872662.pdf In PDF document text

  • https://bbu.vn/Images_upload/files/30747225032.pdfIn PDF document text
  • https://kermanrooz.com/img/files/nibuwubobawere.pdfIn PDF document text
  • http://cka-shiba.com/ckfinder/userfiles/files/13581441739.pdfIn PDF document text
  • http://mebelhotel.ru/userfiles/files/95306947138.pdfIn PDF document text
  • http://ipcmanpower.com/admin/style/images/userfiles/file/kijadasakinijiviw.pdfIn PDF document text
  • http://doanekeyes.com/userfiles/docs/85726915226.pdfIn PDF document text
  • http://slkuang.com/v15/Upload/file/202191035693542.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613062696256b---82215048763.pdfIn PDF document text
  • http://erainbowrealty.com/userfiles/file/19903254386.pdfIn PDF document text
  • http://massintech.ru/img/outer/files/88983998127.pdfIn PDF document text
  • https://lideregitimpaketleri.com/calisma2/files/uploads/78286838741.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/gupijuvinotepum.pdfIn PDF document text
  • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/zudufakofiwomenemipi.pdfIn PDF document text
  • http://newmob.it/userfiles/files/88764643388.pdfIn macro / runtime command snippet
  • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1613363dec8ebe---24133469109.pdfIn PDF document text
  • http://ballmillfactory.com/d/files/kexufivofunap.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/4ur9hj8fbpqd0h0dl9kjfh5tu8/43004570426.pdfIn PDF document text
  • https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/roseb.pdfIn PDF document text
  • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/56676386152.pdfIn PDF document text
  • https://signatureshreyas.in/userfiles/file/53966379318.pdfIn PDF document text
  • https://hk-delight.com/UploadFiles/file/42510437776.pdfIn PDF document text
  • http://rund-sro.cz/UserFiles/File/68032305492.pdfIn PDF document text
  • https://heatingboiler.ca/fck_upload/file/ribelovasej.pdfIn PDF document text
  • http://gezond-traktIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=apple+tv+cast+androidPDF 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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