Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3ca6065e781447…

MALICIOUS

PDF

88.1 KB Created: 2021-08-10 08:17:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 9b63936096a6e4efa66547ebb2bc8ad9 SHA-1: 51da219657cc5ce0f72f0921e2956129bd8d621e SHA-256: 4e3ca6065e7814475c61e67ef7142a630145071c339eef7e6acdab53535bcae1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://allytemp.ru/uplcv?utm_term=naruto+shippuden+ultimate+ninja+storm+legacy+review PDF link annotation
    • https://cmsschoolkg.org/userfiles/file/24329631476.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a54fef61003---zojugokasalijadoseme.pdfIn PDF document text
    • http://geodez.com/pliki/file/razusinilojapixap.pdfIn PDF document text
    • http://e-hematologica.pl/users//file/67579256681.pdfIn PDF document text
    • https://mangalargalux.com.br/ckfinder/userfiles/files/93724952988.pdfIn PDF document text
    • http://bafiti.com/sklep/userfiles/file/debipupepuparorewavalu.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d31146e8d---tejovowuvi.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/1950843439.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/96209413864.pdfIn PDF document text
    • http://fedime.org/imagenes/wexemitar.pdfIn PDF document text
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/qb30lb2cisdlicendk036i9617/85806722210.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/e8riuhvr1fk42v9k1rqrftp3k1/84613394961.pdfIn PDF document text
    • https://mertlakustika.cz/images/pages/file/jedijewugenorununi.pdfIn PDF document text
    • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/f6cd2d535ef1c5a20a6b6f16451a859b/91327696892.pdfIn PDF document text
    • https://dolphinsolutions.net/ckfinder/userfiles/files/xebusibuzobanizosof.pdfIn PDF document text
    • https://binarbaidequipment.com/public_html/userfiles/file/reribodamipizikafutikiji.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac20aeb9137---90759082549.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f143fe85fa---3041268440.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160af8909ce95f---90760461108.pdfIn PDF document text
    • https://qnzar.com/files/guwojaposuguwulixurozogur.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607043b75d3ed---xijivevuxuvaxepole.pdfIn PDF document text
    • http://okmarin.ru/userfiles/file/digiregisumede.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_off0000f15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15A 18324 bytes
SHA-256: 5ba2ca06ea12ee3d39cc9cd15232d99971c218f628cb96b7e87a9bcfcd478fde
font_01_sfnt_off00011eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EEB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13702 11432 bytes
SHA-256: a5f3bd71a0d18fc029a52e85111d5e9f39ed52ce8e3ae8a747eefddc77b93425