PDF malware analysis — malicious · d3e34b9c905437ca

MALICIOUS

PDF

72.8 KB Created: 2021-08-09 09:24:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: e98b510fb36ff0ffc9fb93beedd72ef0 SHA-1: 3442ef9e84b3b1cd6520059e61d3e2f6b765d7df SHA-256: d3e34b9c905437ca2c3af4723d595cd3241f88bd5f3f4fdbd2c23fe6fb9b122d

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/ad7885a3cc4190a63a8f82cb83759ed3/31349103090.pdf In PDF document text
- http://weingut-suppan.at/files/55326562832.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/de94956f449d8200c3fe5f631b55c8b3/39349559633.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/08r3bd3so23in2ut3r9ej9q64b/27160148310.pdfIn PDF document text
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bef2b9ef10e---fegakado.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/87ada6c40edb3f822e5be6c98302e4db/53117329467.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/40940567255.pdfIn PDF document text
- https://egca.fr/userfiles/file/kumofopijiwelizit.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16080a77fad9f2---34480493911.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097ed54c2cbb---15225889228.pdfIn PDF document text
- http://wabasnb.com/files/fckeditor/file/14622088760a78d32237c8.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607777215c93d---58962420692.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071703c4f1f5---rufakovijusezosugux.pdfIn PDF document text
- https://gloriouz.in/ckfinder/userfiles/files/50598261143.pdfIn PDF document text
- https://himalayanthailand.com/image/upload/File/zuviseba.pdfIn PDF document text
- http://maxidmum.com/images/upload/fck/file/bafofiludemazuzigukuxe.pdfIn PDF document text
- http://whs1963.com/clients/7/75/758a827d59fb1c2827eec60421ffdc22/File/30707517295.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/rl1heo4hoqli7rfavosqnq37sb/buwovokoxefuberipegivap.pdfIn PDF document text
- http://cokhihoaiduc.com/uploads/files/56239957205.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=analisis+wacana+eriyanto+pdfPDF 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_off0000bc6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBC6A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d481.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD481	10796 bytes
SHA-256: `1524d5911329a6d66f4023417db00a5ce252798c0312ae4894bcc3e5d2332c19`
`font_02_sfnt_off0000eda1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDA1	15608 bytes
SHA-256: `5754895c4bef53c8b719d83a4220be8cb988983ceb72519204cefc8721b6452c`

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