PDF malware analysis — malicious · 4afd7f2e63b45cbf

MALICIOUS

PDF

81.1 KB Created: 2021-11-04 01:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06

MD5: 4d9e82078071e536123c1d7761064ed1 SHA-1: f773543a2c9ceb56422595771dd512c5d00f1399 SHA-256: 4afd7f2e63b45cbf0fff8901c0e43bcb1f11f7fdbccbb4e7cdb85c398a9ba2a9

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9960

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
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://veterina-hrib.cz/user-uploads/files/peliladuguvagodi.pdf In PDF document text
- http://belgium-ex.com/images/blog/file/98959943231.pdfIn PDF document text
- http://sun-green.nl/ckfinder/userfiles/files/68266592982.pdfIn PDF document text
- https://inunekocp.jp/mailmagazine/upload/files/79532700879.pdfIn PDF document text
- https://nhatthiengroup.com/files/uploaded/files/4696665708.pdfIn PDF document text
- https://alansglobalservices.com/ckfinder/userfiles/files/webodujuleku.pdfIn PDF document text
- http://naturpix.ch/cmsimages/file/49729241690.pdfIn PDF document text
- https://binarbaidrealestate.com/public_html/userfiles/file/35150442517.pdfIn PDF document text
- http://bretagne.annuaire-regional.com/ckfinder/userfiles/files/pagininuso.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/nomasixodelegogofatiz.pdfIn PDF document text
- http://picassogift.com/Uploadfiles/files/xaxogawapuwedositolelox.pdfIn PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/4986321034.pdfIn PDF document text
- http://elsped.hu/files/file/rifolazap.pdfIn PDF document text
- https://volandovia.it/public/fileeditor/file/kopazoxisa.pdfIn PDF document text
- https://pieseautocomenzi.ro/userfiles/file/35408167932.pdfIn PDF document text
- http://stcforanebanglore.smcim.com/www/js/ckfinder/userfiles/files/guzoru.pdfIn PDF document text
- http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wixasinimenirofiz.pdfIn PDF document text
- http://aapltd.net/userfiles/file/setuvazawidijexinuke.pdfIn PDF document text
- http://lilcash.com/ckfinder/userfiles/files/tarosewinegirefetajipitev.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/ua4leirq4oa5a48qkk2fs4n7ta/kimanalikigunifapuvotex.pdfIn PDF document text
- http://umbabox.com/userfiles/file/8019711393.pdfIn PDF document text
- http://ephtour.com/FileData/ckfinder/files/20211001_84D72603F2004B43.pdfIn PDF document text
- http://sun-green.de/ckfinder/userfiles/files/jijikakup.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/RC0zOYPQW8A/uplcv?utm_term=u+think+your+cooler+than+mePDF 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d8df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8DF	17796 bytes
SHA-256: `0e6247dee2c5079f37270a77c7c7256098263c5040ab76be7f521ca87617c5ce`
`font_01_sfnt_off00010733.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10733	10640 bytes
SHA-256: `c474511d28cc848d69365b82faafbf6ccd8dc8dd0150d25a831a4448ebdda7c2`
`font_02_sfnt_off00011f5e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11F5E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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