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.
• 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 http://njbeihang.com/uploadfile/file///2021091705544988.pdf In PDF document text

  • http://carscaso.com/js/upload/files/jaluxefetozawagawupi.pdfIn PDF document text
  • http://xdata.pl/app/webroot/img/ckf/files/91323916298.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ml35414o0c8mfqfq6pq3nd7ko2/95997140631.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/bd871b2b0928dc06b1f929125d0f17a3/bodugopofukakuselikevuw.pdfIn PDF document text
  • https://solidpractise.com/files/userfiles/file/41361073390.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133cd027846b---95225584867.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb95ee3ff8---63863193872.pdfIn PDF document text
  • http://celeb.huh.hu/UserFiles/File/39427981488.pdfIn PDF document text
  • https://wegofa.com/userfiles/file/40055923682.pdfIn PDF document text
  • https://bem-sa.com/img/file/sisizewonodazesafid.pdfIn PDF document text
  • http://rnralpha.cz/res/file/tewur.pdfIn PDF document text
  • https://medtek.vn/storage/file/37836564041.pdfIn PDF document text
  • https://omegaplus.bg/uploads/pages/files/10734271469.pdfIn PDF document text
  • http://intproplaw.com/admin/uploads/file/15842376233.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/menugaxenovarakif.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/69b4366aa509000af200e858fc90688f/78165735788.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/5016729393.pdfIn PDF document text
  • http://kahounova.cz/userfiles/file/lotevilurowitagir.pdfIn PDF document text
  • https://sambelteri.com/contents/files/dibojowevibit.pdfIn macro / runtime command snippet
  • http://grafiport.com/userfiles/file/78222368194.pdfIn macro / runtime command snippet
  • http://mybyblos.com/userfiles/file/90891715581.pdfIn PDF document text
  • https://diarch.in/WYSIWYGImage/file/vubevip.pdfIn PDF document text
  • https://mytekas.com/UserFiles/file/18332553865.pdfIn PDF document text
  • http://fszhenjia.com/upfolder/e/files/20210903081108.pdfIn PDF document text
  • http://twgo8.com/uploads/base/files/202109120643193503.pdfIn PDF document text
  • https://www.rapn.ru/ckfinder/userfiles/files/femogetazagaruwusox.pdfIn PDF document text
  • http://kahounova.cz/userIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=where+the+truth+lies+movie+free+downloadPDF 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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