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
• PHP webshell / backdoor source critical WEBSHELL_PHP
  The file contains PHP server-side code with the signature of a webshell/backdoor (named PHP webshell banner (madspot)). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
• 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://siam-royal-view.ru/data/files/gadorajofujogisak.pdf In PDF document text

  • http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/53852855614.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613986235ee14---bimipa.pdfIn PDF document text
  • https://hiroyoung.com/data/files/timoxilopa.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133f4e456a18---vigonanit.pdfIn PDF document text
  • http://hainfelderteich.at/busomukidojunaji.pdfIn PDF document text
  • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a92802f13---fimobuwigokebulogojo.pdfIn PDF document text
  • https://dorfadvertising.com/ckfinder/userfiles/files/mupanu.pdfIn PDF document text
  • http://iscelenie.info/files/file/tubibopokorupizasisadujog.pdfIn PDF document text
  • http://weighlessthisyear.com/ckfinder/userfiles/files/nezokotowegipiweritog.pdfIn PDF document text
  • https://madspot.dk/ckfinder/userfiles/files/mukopenatuxeriwikiletug.pdfIn PDF document text
  • https://asztromiskolc.hu/ckfinder/userfiles/files/73833379965.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161356ef1dd19f---8792825606.pdfIn PDF document text
  • http://arucax.am/user_images/file/bojavepejeluxu.pdfIn PDF document text
  • https://farmacieitaliane.com/documenti/file/zufufak.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/kenonilimen.pdfIn PDF document text
  • http://ozhelalikram.de/resimler/files/98311381205.pdfIn PDF document text
  • https://soosekszer.hu/upload/files/sizazetetuj.pdfIn PDF document text
  • https://grdr.org/paidel/ckfinder/userfiles/files/60064560750.pdfIn PDF document text
  • https://samsungklimamodelleri.com/upload/ckfinder/files/figezumenarigoxe.pdfIn PDF document text
  • http://appartementslisa.it/an3_Uploads/file/68954646564.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161327de4480d6---98078444041.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/firifivebolut.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+solve+android+process+acorePDF 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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