Malicious PDF — malware analysis report

Static analysis result for SHA-256 4252f8284fb6c914…

MALICIOUS

PDF

83.6 KB Created: 2021-09-17 13:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: bda03aaaafdc2a005a857c8813310b26 SHA-1: e00fadf3bf2bcc996846528f9d7c8104898d22cc SHA-256: 4252f8284fb6c914ff5505ecfae62558cfb17dff3a193b697e611102332bff0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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 http://senvietsystem.com/ckeditor/upload/files/23131007269.pdf In PDF document text
    • http://machinesupplier.cn/data/product/file/2021910_31448_131.pdfIn PDF document text
    • http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/xivalinibelapolidef.pdfIn PDF document text
    • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/33091714607.pdfIn PDF document text
    • https://trieurodata.ro/images/file/46606089159.pdfIn PDF document text
    • https://dazhonghua1688.com/ckfinder/userfiles/files/59364007677.pdfIn PDF document text
    • http://poney-club-romilly-aigre28.fr/userfiles/file/momowebuxedobuge.pdfIn PDF document text
    • https://ghnservizi.com/file/34219381192.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/38632657569.pdfIn PDF document text
    • http://f-kcc.jp/user_data/userfiles/files/61140708027.pdfIn PDF document text
    • http://rucodelniza.ru/userfiles/file/rowirabexidefunosivetel.pdfIn PDF document text
    • https://creativitagh.com/pevron/www/img/file/73554405278.pdfIn PDF document text
    • http://maremania.net/img_pagine/file/14750000761.pdfIn PDF document text
    • https://vnsteeldetailing.com/UserFiles/files/wadosagenofonakin.pdfIn PDF document text
    • https://arrayamed.com/userfiles/file/vuregiwa.pdfIn PDF document text
    • http://xn--h1agcmh.com/ckfinder/userfiles/files/duzubunulotatuzumino.pdfIn PDF document text
    • https://jnvhardoi.org/ckfinder/userfiles/files/jurukasebubinokola.pdfIn PDF document text
    • https://clubsecurite.fr/webroot/upload/files/97769781089.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16130277306f4e---togufawuj.pdfIn PDF document text
    • http://snft.ro/media/file/91117934229.pdfIn PDF document text
    • http://ms-beauty.com/ckfinder/userfiles/files/dajewamudaduzipun.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/fe5532d22130b466efbe77560b829329/zivadeziwujomaku.pdfIn PDF document text
    • http://miskolciharsona.hu/pictures/file/28871259081.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=hack+pubg+mobile+lite+mod+apkPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ced5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED5 22252 bytes
SHA-256: 37ca25a446380757ffa56c314f0e162c61e67f685b17aed39579960e42af00b3
font_01_sfnt_off00010728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10728 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F35 1936 bytes
SHA-256: 581ee6410b39f3fc3c0b7eee44a1f688a16d32601ddb4ff915e7da4a385d4a1a
font_03_sfnt_off0001282e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1282E 10808 bytes
SHA-256: b7b8ef0b7200d0370fbc7806a43742e79fe7c3976c8ac9f5f872da2182f807fc

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