Malicious PDF — malware analysis report

Static analysis result for SHA-256 44143037369d3d71…

MALICIOUS

PDF

71.3 KB Created: 2022-03-21 10:36:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 2f09740ffc78732773b0350f90d4d0ae SHA-1: 7383c85254bf34c46edb3f9006842739b7700ad7 SHA-256: 44143037369d3d7189f7ad0430b9268d2716cbb8b5d93a5ea168635b41b5ebf8
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://yubit.co.za/XSRYdR1H?utm_term=monster+hunter+world+arch+tempered+zorah PDF link annotation
    • http://maimungkorn.com/UserFiles/file/lesaketa.pdfIn PDF document text
    • http://amtautotrasporti.com/ckeditor/kcfinder/upload/files/lokakowavurinilabam.pdfIn PDF document text
    • http://bbmeti.it/userfiles/files/82872137299.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1621ad940007c6---gasowoguxunuwovojobozavi.pdfIn PDF document text
    • https://pod-jaskolka.pl/files/files/61730736235.pdfIn PDF document text
    • http://artemovsk.topmebli.com/content/xuploadimages/file/kofividamobirewevofirano.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20220219080157_7z3a8e.pdfIn PDF document text
    • http://soojuspilt.ee/files/file/vuwumof.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/b226a7b98c20c6cddb6a3966b4511017/bejexufebirowewakime.pdfIn PDF document text
    • https://indiantalentjunction.com/milan/media/vofoselazinurori.pdfIn PDF document text
    • http://6461737.ru/upload/files/wofebozidatafifaxates_1645312369.pdfIn PDF document text
    • https://dehayemek.net/upload/ckfinder/files/perivosiwunalugu.pdfIn PDF document text
    • http://sial.pl/galeria/file/65014602109.pdfIn PDF document text
    • http://www.banzolaassociati.com/gestlab/kcfinder/upload/files/21705708077.pdfIn PDF document text
    • http://zzweien.com/d/files/dorinu.pdfIn PDF document text
    • http://dgelc.com/userfiles/file/20220307170658.pdfIn PDF document text
    • http://bouwbedrijfbouwheer.nl/userfiles/file/10470159997.pdfIn PDF document text
    • http://momsystem.ru/public/file/nipudeguruwenofetenuri.pdfIn PDF document text
    • http://drkoopman.nl/cmsimages/file/fowegufokegipazajuvaxa.pdfIn PDF document text
    • http://www.iccet.org.tr/kcfinder/upload/files/92654059267.pdfIn PDF document text
    • http://bronia.org/userfiles/file/lovomopekisugabevo.pdfIn PDF document text
    • http://iaestedresden.de/userfiles/file/jigewibisajarevifudas.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 extracted file (font_00_sfnt_off0000b199.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b199.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB199 17676 bytes
SHA-256: 4b5f8de482057f4d7d597740d2c29987192b4b43394eae8e84486e8d3071d2eb
font_01_sfnt_off0000df7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0000f69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69D 10924 bytes
SHA-256: 3471415bf68b9142448524d3e1d8af264b2e58af5c65231b9bc5aff532a8dde5