Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c15e566d9883b…

MALICIOUS

PDF

88.4 KB Created: 2021-08-29 04:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: a616ddd859f8dad5b4240699aa4d2e50 SHA-1: 84ed3883313484b5f5af31408d130dc3281951b9 SHA-256: 478c15e566d9883b69a28a29cfa72d3fc065d54559242b8675f5b45a00d6612d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://medvor.ru/uplcv?utm_term=trons+unblocked+games PDF link annotation
    • https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/wawexuwujujev.pdfIn PDF document text
    • http://lab4050.com/upload/editor/file/33647950724.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16114019c0334c---58907494850.pdfIn PDF document text
    • http://cec-intl.ru/app/webroot/files/file/konozegilusumamef.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/9971789729.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871855f3c6c---rigevit.pdfIn PDF document text
    • http://pho32shabu.com/uploads/files/nined.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfb0623acc3---joraxasatalakefuvami.pdfIn PDF document text
    • https://projekt-lesen.de/userfiles/file/47497380648.pdfIn PDF document text
    • https://chaplains-camps.org/upload_picture/file/94849827708.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/69751806358.pdfIn PDF document text
    • http://cogersquest.com/clients/f/f6/f6194b381802d71b6842d6160e8859b1/File/6038644627.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883f7e50bde---90412944656.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/bed953cfe5b51413ece668964eab7f73/genunuxagajuxevopapewafem.pdfIn PDF document text
    • https://infoenergie-loire.org/userfiles/file/42931643656.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/0f0ff911acfc185e6b821c4405a73b75/28411378491.pdfIn PDF document text
    • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/84154fa114420d7655d9fd09edad6b21/tokixaredegatovox.pdfIn PDF document text
    • http://iglozawiercie.pl/zdjecia/file/90500965694.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/46696097df7d4f99aacf9f559a3014a5/liritepuzedomiful.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/7gab29ql8udh11p7s9632e6bf5/18254921719.pdfIn PDF document text
    • http://remont-etalon.ru/upload/files/94459259827.pdfIn PDF document text
    • http://saovietgroup.com/upload/FCK/file/xefafezenexoraso.pdfIn PDF document text
    • 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_off0000f17a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10991 10816 bytes
SHA-256: 88effac3c397a267091411e12301a52bc92b8085abc78b61a1859b2072cda9ad
font_02_sfnt_off00012249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12249 19088 bytes
SHA-256: 5b333d270ece881659631fa8abf623f773f6aeaaace292fe47b80c46f782bf98