Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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 http://abbaorphancare.org/survey/userfiles/files/47457053313.pdf In PDF document text

  • http://chamdure.com/DATA/files/migajusesola.pdfIn PDF document text
  • http://savalis.ru/userfiles/file/rujuxabaw.pdfIn PDF document text
  • http://alpha-th.com/userfiles/file/8114308411.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141cfca10239---69897396475.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/90167087608.pdfIn PDF document text
  • https://iohrp.org/f_files/files/10917421300.pdfIn PDF document text
  • http://i-daa-wl.de/userfiles/51404498812.pdfIn PDF document text
  • http://185.33.116.142/~bbyacht01/upload/files/30843668702.pdfPDF link annotation
  • https://namphuctourist.com/userfiles/file/31549195197.pdfIn PDF document text
  • https://consultingexpert.eu/fckeditor/userfiles/file/20410364325.pdfIn PDF document text
  • https://mahanakhon.pacedev.com/ckupload/files/27384600886.pdfIn PDF document text
  • https://uzmanwebci.com/calisma2/files/uploads/20161094481.pdfIn PDF document text
  • http://kehlux.lu/userfiles/files/kuvuvotuzazot.pdfIn PDF document text
  • http://medeeatour.ro/mm/file/42039902011.pdfIn PDF document text
  • http://mmbc.cz/_data/user_files/file/47215110149.pdfIn PDF document text
  • http://alfatreyd-mebel.ru/archive/images/file/13850713223.pdfIn PDF document text
  • http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/86009164624.pdfIn PDF document text
  • https://bizimpin.com/calisma2/files/uploads/22208897762.pdfIn PDF document text
  • http://violetstudio.in/userfiles/file/37727736426.pdfIn PDF document text
  • http://winfielddeli.com/ckfinder/userfiles/files/mobesomirisevuxarizudi.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613447d01c907---31623571941.pdfIn PDF document text
  • http://santeh.md/img/files/7837571370.pdfIn PDF document text
  • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16132aa892276e---lezabefate.pdfIn PDF document text
  • http://morakothotel.com/file_media/file_image/file/40631978270.pdfIn PDF document text
  • http://studio-rivetti.it/userfiles/files/kovetan.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+use+emojis+from+disney+emoji+blitz+on+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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