MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to domains associated with link farms and compromised CMS uploads. The document body is heavily obfuscated, preventing a clear understanding of its direct user-facing content, but the overall structure and URL distribution strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://kor-ra.ru/UserFiles/file/fowoxoda.pdf In PDF document text
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/62535295631.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109122025026498.pdfIn PDF document text
- https://eliteprotectiveservices.net/ckfinder/userfiles/files/36138706300.pdfIn PDF document text
- https://hefcom-hydraulics.com/ckfinder/userfiles/files/28816557683.pdfIn PDF document text
- https://canevastoilestjean.com/upload/editor/file/vawajojimonesisov.pdfIn PDF document text
- http://generaldistco.com/images/file/pajixutosipagadakowol.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a3963e8139---ponenawe.pdfIn PDF document text
- https://vroa.pl/chplusfiles/file/wurafujevesugo.pdfIn PDF document text
- http://rracc.com/file_media/file_image/file/xixikufexi.pdfIn PDF document text
- http://poexali.org/static/image/_u/system/files/jafelixojilalilegux.pdfIn PDF document text
- http://heryeryesil.com/resimlerfiles/8657716053.pdfIn PDF document text
- http://papianiarch.it/userfiles/files/wukinigiraruwikujededo.pdfIn PDF document text
- https://ofertaromania.ro/ckfinder/userfiles/files/1380667777.pdfIn PDF document text
- http://archissimo.eu/userfiles/files/52023970290.pdfIn PDF document text
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/siguguzinoguvorefijuxak.pdfIn PDF document text
- https://rajatotogroup2.com/contents/files/rinolotidujid.pdfIn PDF document text
- https://bisnismedsos.com/userfiles/file/kuzafasilo.pdfIn PDF document text
- https://cremyco.com/app/webroot/docs/file/15049974007.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/321d2bj2qjq3alimspelum0q0c/37786139240.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/455ldv9kbbgua26ns4vd6haut4/40610956370.pdfIn PDF document text
- http://cobansut.com/userfiles/file/87841681446.pdfIn PDF document text
- http://shahgrp.com/uploads/naxepeliwotoradurusorubel.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=android+photo+enhancerPDF 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_off0000ad3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD3E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c550.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC550 | 14760 bytes |
SHA-256: 1c0bc8ec15e29a7ea6a5455418b9916962aad81f1271889e78f31d3f9a67449d |
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font_02_sfnt_off0000ea46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA46 | 10380 bytes |
SHA-256: a659b8745615139059c6f6564c9f35bf94922c03fe810b8a2ea395d95dc3a503 |
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