PDF malware analysis — malicious · cd73d32085cb97e6

MALICIOUS

PDF

87.6 KB Created: 2021-09-10 20:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: c7d0150df241882e79009abec9b285c9 SHA-1: c515989333ed4138bcdfc2da4775009bfdccfe9f SHA-256: cd73d32085cb97e657258a17626facfd570b9c1114e6ede97ea83503cd69bc29

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://ketchas.ru/uplcv?utm_term=the+amazing+spider+man+2012+movie+full PDF link annotation
- http://runnersavezzano.it/public/userfiles/file/tiwifewogubetexinamib.pdfIn PDF document text
- http://werkschoenenverkoop.nl/images/docman/files/10389971722.pdfIn PDF document text
- http://gelinyuanyi.com/upload_fck/file/2021-9-2/20210902135750628352.pdfIn PDF document text
- http://hemeringen.de/ckeditor_ablage/userfiles/files/fuxotupasexofevibofaluxox.pdfIn PDF document text
- http://www.atsamuihaus.com/image/upload/File/tovip.pdfIn PDF document text
- http://nokianhakkablue.ru/ckfinder/userfiles/files/nexoruvewevitituzotet.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c77903f72---89467703694.pdfIn PDF document text
- http://trunglam.vn/uploads/userfiles/file/pezafetitekojowunogiza.pdfIn PDF document text
- https://sluganarodu.org/userfiles/files/wuzod.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316bf8cbcd1---gagovafawosas.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/93a055a2bed8a20e9f88a67399101ae3/nezorerimujudato.pdfIn PDF document text
- https://digireg.cz/upload/36741203948.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/96901999997.pdfIn PDF document text
- http://fluorescent-training.com/file/80315330482.pdfIn PDF document text
- https://martas.vodrsport.cz/uploads/files/dalibitodudow.pdfIn PDF document text
- https://staging-info.sharkovinkom.com/sharkovinkom.com/ckfinder/userfiles/files/69913618795.pdfIn PDF document text
- https://camgloberealtor.com/userfiles/file/komivazibaxedi.pdfIn PDF document text
- https://liho.cz/UserFiles/File/95625787410.pdfIn PDF document text
- http://pumarecovery.com/userfiles/files/57860664756.pdfIn PDF document text
- http://lasfyy.com/uploadfile/file/20210903093415635.pdfIn PDF document text
- http://dep14kirov.ru/userfiles/file/38254116291.pdfIn PDF document text
- https://studioconcept-stand.com/fck_userfiles/file/96485233599.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_off0000ec63.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC63	11328 bytes
SHA-256: `4cc033070d0b1608d08f73b0f835e4be43f56ec9150dd125bdeb78bc65ca305d`
`font_01_sfnt_off000106b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x106B5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011ec7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11EC7	19224 bytes
SHA-256: `5121312b5fc6c1f54ce2d57b934a89f9c1473d2f2eaf0f78863884165410ab10`

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