PDF malware analysis — malicious · cd76d15c40315b08

MALICIOUS

PDF

83.6 KB Created: 2021-09-21 02:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18

MD5: 7d5053c848657143c210e361500edb0e SHA-1: 3f28272971955c4c8ebabfe9a46fe35caa2d804c SHA-256: cd76d15c40315b08eb6215d6625e68f761c78aee9a62c9a157dfbffb14040cfb

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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
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.
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://garglob.ru/uplcv?utm_term=flutter+duration+widget PDF link annotation
- http://minhphucvietnam.com/uploads/userfiles/file/surijap.pdfIn PDF document text
- https://amgaa.org/temp/files/22444606874.pdfIn PDF document text
- https://asken.as/bilder/file/3721444945.pdfIn PDF document text
- https://lotusmarinevn.com/upload/files/58949210918.pdfIn PDF document text
- http://simonkuehner.de/gfx/userfiles/files/5717599900.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16146fd60dd793---71436008415.pdfIn PDF document text
- https://998.geektic.com/geektic/files/2105193024.pdfIn PDF document text
- https://www.chablis-gautherin.com/ckfinder/userfiles/files/vofubimexejiviwopudupel.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614408ef90825---walurumizud.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/8af7dc4b5c25885811215650f5b6a44e/gezugawi.pdfIn PDF document text
- http://psystems.gr/Administrator/uploads/userpics/OutPostImages/files/rizubav.pdfIn PDF document text
- http://songpinhao.com/userfiles/files/13274809497.pdfIn PDF document text
- http://chafewyuok.handysociality.com/upload/files/39053790264.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/to2ie26mk8nglmm00bkpt5mjhr/20360930583.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161424f5a6732b---48182550000.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/lujuvogatitibu.pdfIn PDF document text
- http://travelport.pl/userfiles/file/47933180945.pdfIn PDF document text
- http://www.yeosung21.or.kr/ckfinder/userfiles/files/1631485103.pdfIn PDF document text
- http://vce34.ru/attachments/file/97678318517.pdfIn PDF document text
- http://rovitek.com/userfiles/file/50723660234.pdfIn PDF document text
- https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/44365042337.pdfIn PDF document text
- http://palami.by/images/file/xulolipuxuzevuxuboguv.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e1eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1EB	18072 bytes
SHA-256: `d7ca8eab89e809dacfd4f588ef7e87fab572d6e154043d19ef31d41fd3d1c75b`
`font_01_sfnt_off0001116a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1116A	10416 bytes
SHA-256: `eab965fe5227200f50ff22e26e773b16bd38ac7047e2b46d62d56ac6d539568a`
`font_02_sfnt_off000128ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x128EF	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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