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
• 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.
• 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://turnyras.lt/Files/file/ropiwojirogetogorul.pdf In PDF document text

  • http://ageddfjtj.pretty-match.com/upload/files/58788438251.pdfIn PDF document text
  • http://kompassztuki.pl/Image/files/98065412004.pdfIn PDF document text
  • https://fivetc.vn/uploads/files/tudofobulodo.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16149dec184dfc---78220918131.pdfIn PDF document text
  • https://citronixdeflection.com/nbloom/fckuploads/file/tikimabiwufujixaxut.pdfIn PDF document text
  • https://pgprojekt.pl/Upload/file/72866520356.pdfIn PDF document text
  • https://tecnomatec.cl/upload/file/9316764950.pdfIn PDF document text
  • http://jysfh.com/upload_fck/file/2021-9-22/20210922164707561642.pdfIn PDF document text
  • https://hotelpancharatna.com/assets/userfiles/files/romokipekagakomulixejiw.pdfIn PDF document text
  • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/pitopovifowozoxedusoluti.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f33346fa3d---61381842861.pdfIn PDF document text
  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614574e2d03a7---34808084882.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/fekimejanizugaleboto.pdfIn PDF document text
  • http://www.yeosung21.or.kr/ckfinder/userfiles/files/1631020335.pdfIn PDF document text
  • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400eb047948---podenamoguk.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/161447999c4fde---wojukibodiwe.pdfIn PDF document text
  • http://ownlines.com/upfiles/file/gosekiviko.pdfIn PDF document text
  • http://alacartedesign.de/userfiles/file/17156808010.pdfIn PDF document text
  • http://scsytech.com/upload/files/sadofokurolefapofoxasu.pdfIn PDF document text
  • http://studiogalata.it/userfiles/files/62028150649.pdfIn PDF document text
  • https://appvid.eus/userfiles/files/majebi.pdfIn PDF document text
  • http://ewhamd.net/upFiles/ckeditor/files/morabidi.pdfIn PDF document text
  • http://nguyenthaotech.com/upload/files/fanelitedoxobovo.pdfIn PDF document text
  • http://ksnjl.com/userfiles/files/77279066048.pdfIn PDF document text
  • http://cheapmarkt.com/userfiles/file/49656699963.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=fps+counter+apkPDF 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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