Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d82b7964651249f…

MALICIOUS

PDF

92.4 KB Created: 2021-07-05 06:37:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 4c96e36e7c34a9d86abb9ce895e9aa11 SHA-1: c6d9e2129536f8e905264c9db0bd27928e3c0bbc SHA-256: 5d82b7964651249f4280309c4993ffd87f8845419b9091a12decdb2df73fd749
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 6

  • 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 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://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3a45a0d7a---fumuxuwi.pdf In PDF document text
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/ca9ee1bc1c210421b5b1bbe42b19f495/giwufe.pdfIn PDF document text
    • http://yourhealthyanswer.com/ckfinder/userfiles/files/vurevagojuruzoba.pdfIn PDF document text
    • http://vizit-k.net/uploads/editor/files/sagolon.pdfIn PDF document text
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc4c88d8de---72463667887.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc58d152e1---vetumizawenarobame.pdfIn PDF document text
    • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/55fc68b3c8728edc58723bb98a9ae70a/lasasekor.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1609046de39cb1---kobusuverinus.pdfIn PDF document text
    • http://avtokit116.ru/!upload/files/34618644657.pdfIn PDF document text
    • http://cleanyachts.it/writable/public/userfiles/file/45296693346.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867676f23a6---19567181019.pdfIn PDF document text
    • http://mountcalvary76.com/clients/9/90/9062e1c9f2360b2cedac6e2854879500/File/xukilobatobifibakupasezav.pdfIn PDF document text
    • http://beerskiboot.com/img/upload/file/84757433963.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ec546518e---47466018310.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/9ecdmhqbh3oprblfmiddfge990/dodibazedosezexulex.pdfIn PDF document text
    • https://visionbrindes.com/admin/fckeditor/userfiles/file/limijepawazabi.pdfIn PDF document text
    • https://wildarium.com/ckfinder/userfiles/files/nobegudatixuvaxofuf.pdfIn PDF document text
    • http://agendaalzheimer.org/files/galeria/files/vonejejukukotifurunorerin.pdfIn PDF document text
    • https://vietrocknet.org/app/webroot/img/files/76355399985.pdfIn PDF document text
    • http://chsbicentennialclassof1976.com/clients/c/c2/c283bfa2537a82fb79a670aa087b4bd4/File/8337214486.pdfIn PDF document text
    • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/5qmplp35c0ooc418gb2r52stda/59275545188.pdfIn PDF document text
    • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/91951276043.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072721c74b86---89214108540.pdfIn PDF document text
    • http://www.trafikyaren.com/wp-content/plugins/super-forms/uploads/php/files/7h6ckghtjssk88ubaeke6ngue6/19728386694.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a3f63d78f---16949379561.pdfIn PDF document text
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/ditoa8po46oqo5hul4k10adr91/kelajowufibolamuxo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=cool+personality+traitsPDF 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10785 10392 bytes
SHA-256: c52f37416fc3137a5aa46191fdfd5a7dc41123d9f6a29d78fe26662628ea1de3
font_01_sfnt_off00011f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F36 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13748 17300 bytes
SHA-256: c10f1c3fe7a29404675c85d45464a3f32b17a4842adb7b55be3d9929d3eb9e28