PDF malware analysis — malicious · d3e9de2d18635db4

MALICIOUS

PDF

94.1 KB Created: 2021-08-08 05:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20

MD5: 335d857f55dd17d0afbf7d1f6e5f1336 SHA-1: 42ed81644e17d95848912899c14a32ae014e150f SHA-256: d3e9de2d18635db4e1de93d356f1cadcdf7df45b926c5bafcd5f564820c698cf

164 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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 https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/8dda233d75ecb49676cab3304e49d53b/vovepojigivokomafod.pdf In PDF document text
- https://tresonance.org/uploadfiles/34090758110.pdfIn PDF document text
- https://chetanaus.org/bheru/uploadfiles/file/lakuguf.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/c8fe9a05931472be6f961be1b629b6d6/kamoxomegezokenobaxolal.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b745f314870---37374164557.pdfIn PDF document text
- http://0-50.ru/userfiles/file/67145164399.pdfIn PDF document text
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/662773ffc3f186b30dd34dab1c60808c/pofimomu.pdfIn PDF document text
- https://infypos.com/infyposcms/media/diduvubagekurugonaze.pdfIn PDF document text
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/42132304027.pdfIn PDF document text
- https://geniodelweb.com/file/50880531228.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c46e654b0ec---doxubejajelanedogor.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/xuvujejewakuritidened.pdfIn PDF document text
- https://aldapa.eus/files/galeria/files/memitidorevasolexobilum.pdfIn PDF document text
- http://kovove-ploty-brany-zabradli.cz/UserFiles/File/zomajidujifanegunu.pdfIn PDF document text
- http://www.logomarcanet.com/userfiles/file/64427107577.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/9kuc5n5ism4blb62thn7r6f9ld/pegaluzulatani.pdfIn PDF document text
- https://medosojewellery.com/userfiles/files/23621828829.pdfIn PDF document text
- http://alpha-th.com/userfiles/file/26028855049.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0d8b76ec1f---jipelovijipigemu.pdfIn PDF document text
- https://oriental-kitchens.com/userfiles/files/10766524053.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/67a52cc15cc12e933e07d6e885211932/walegigip.pdfIn PDF document text
- http://sxhk365.com/uploads/file///xusomunikokitufusi.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/0omukbhnjqearpj5p8asc3nq1a/49941194175.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/f5cljnubjf9tbruiphrep1or06/pimanapopukufime.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=angulos+suplementarios+en+un+paralelogramoPDF 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.netReferenced by PDF JavaScript
- http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f23e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF23E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00010a50.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A50	18092 bytes
SHA-256: `bd9908e3c904bedf37dbd8be66bb1da128f45b603cfdc22547637950ea03a8ad`
`font_02_sfnt_off000138ca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x138CA	10676 bytes
SHA-256: `3ffea1246b14a7b81575c3cda295dcaa1b77ce82a073583ded0c5c7cebb8df56`
`font_03_sfnt_off0001514c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1514C	16276 bytes
SHA-256: `ed26d167cbb6827a76c5b88ab88d88790493fa142acf9e30797528dc30efa44f`

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