Malicious PDF — malware analysis report

Static analysis result for SHA-256 4787706b6affff96…

MALICIOUS

PDF

68.5 KB Created: 2021-10-02 15:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 28f06d78af60102a9e5755b3664a1c62 SHA-1: 20ae7fa7d6acc710773e23110b635ba803e27fde SHA-256: 4787706b6affff963871fe832cc28d4ce2a8fdee1a532abb04fcff9f13e0b3ed
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://chcial.ru/uplcv?utm_term=basketball+word+search+answers PDF link annotation
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614a1ad4a403b---66154889121.pdfIn PDF document text
    • https://thietbixanh.net/uploads/files/60995818137.pdfIn PDF document text
    • http://pkpneu.cz/userfiles/file/tikokipuvakikabanox.pdfIn PDF document text
    • https://takitech.hu/userfiles/file/sasugorewudizudevimawob.pdfIn PDF document text
    • http://stolizstekla.ru/userfiles/file/likobivofomixupavafap.pdfIn PDF document text
    • https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/93837596560.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/xunizipova.pdfIn PDF document text
    • http://agrion.org/upload/fichier/nolamoniku.pdfIn PDF document text
    • https://ph2020.org/ckfinder/userfiles/files/44700818908.pdfIn PDF document text
    • http://intranet.uts.edu.co/portal/app/ckfinder/userfiles/files/punulivew.pdfIn PDF document text
    • http://polipadel.com/userfiles/file/woxekereb.pdfIn PDF document text
    • http://belovosushi.ru/files/68441549731.pdfIn PDF document text
    • https://drakbera.com/ckeditor/ckfinder/userfiles/files/82258983305.pdfIn PDF document text
    • http://thekreativecompany.com/uploaded_files/userfiles/files/80094303653.pdfIn PDF document text
    • http://studiofapas.it/userfiles/files/votiwusapepesegubuzesuw.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614faa26e5b1c---70906523909.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/vexulujenidirab.pdfIn PDF document text
    • https://vietcuongcorp.com/uploads/news/files/wadoxop.pdfIn PDF document text
    • https://ruh-center.ru/userfiles/file/kumuliwalilalixalovek.pdfIn PDF document text
    • https://saglamahsapkutu.com/img/editor/image/file/wosuvuretalirexuxevevos.pdfIn PDF document text
    • https://www.soroptimist.be/oldsite/intranet/ckeditor/ckfinder/userfiles/images/files/tamokexevirikuja.pdfIn PDF document text
    • http://infinity-pro.ru/userfiles/file/4432200633.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_off0000adf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADF4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC606 15032 bytes
SHA-256: 63b7762b41770c636bd066457a18f9ca4ecbc4a311d55ba3028ccdad433def67
font_02_sfnt_off0000ebe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE9 10744 bytes
SHA-256: a4cb693cd17d5973650aa43a450e6ca28e890eabafdc109e308825b85d3929ae

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