Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d463ef5acf5202…

MALICIOUS

PDF

90.1 KB Created: 2021-10-24 03:23:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 7365c79cc7034d530b882bf1d3888008 SHA-1: 19defa303aad636dafff230b215da37deec6977f SHA-256: c5d463ef5acf520205711fc8c21fc113c45db5db6a3fd14c75affbefbac9bf01
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://queure.ru/uplcv?utm_term=intimacy+as+an+interpersonal+process PDF link annotation
    • https://funke.be/data/file/munofodudegobas.pdfIn PDF document text
    • http://leprofit.ee/cmsfile/contentfiles/vabizunaragebexukobuwuxeg.pdfIn PDF document text
    • http://rc-modeller.se/images/file///jotune.pdfIn PDF document text
    • https://sproname.com/files/userfiles/files/zobavak.pdfIn PDF document text
    • https://tiemhoamo.tiemhoahaibara.com/data/dulieu/files/kezasur.pdfIn PDF document text
    • https://thebookonpersonaltransformation.com/FCKeditor/file/zamijupi.pdfIn PDF document text
    • https://3visiontech.com/piceditor/file/fudivorokumorebuzadaf.pdfIn PDF document text
    • http://jr.ac.th/ckfinder/userfiles/files/12473961958.pdfIn PDF document text
    • http://hoachattn.com/image/files/48539048198.pdfIn PDF document text
    • http://allamericannursing.com/userfiles/file/jigulosuw.pdfIn PDF document text
    • http://f-okinawa.com/img/tmp/files/66290457365.pdfIn PDF document text
    • http://newmob.it/userfiles/files/kulomadawixexupotufak.pdfIn PDF document text
    • http://lovelyspa.net/ckfinder/userfiles/files/29628296873.pdfIn PDF document text
    • https://globalybm.com/ckfinder/userfiles/files/1632210842.pdfIn PDF document text
    • http://trip-sale.ru/userfiles/file/89911754590.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b4267d4de7---suzidofikij.pdfIn PDF document text
    • https://gmnavarra.es/ckeditor/files/wemokawezabasegosunazabo.pdfIn PDF document text
    • http://wamer.org/userfiles/file/68828114537.pdfIn PDF document text
    • http://sanalights.com/admin/admin/uploadfiles/file/zewakebe.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16136aa81d00a8---87272625448.pdfIn PDF document text
    • https://ceral.pl/ceral/pliki/file/fubodeluluwolodixasesiv.pdfIn PDF document text
    • https://wanfutemple.urwaydesign.com/data/file/userfiles/files/xofagezobigute.pdfIn PDF document text
    • http://derkwoo.com/upload/editor/files/vesixivedafamivuzi.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_off0000fce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE3 17480 bytes
SHA-256: 71c504c9d1beff277cb93a3d048394b5ef8f295161dfd3577a1cdfbe0ea85a66
font_01_sfnt_off00012a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14264 10600 bytes
SHA-256: 2d8e25c4cc9683929db7d30529d34611ae69a777cb9e720b47d87479be0ed0f6

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