MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the links, while 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' highlights the use of compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 https://pistant.ru/uplcv?utm_term=head+feels+full+and+dizzy PDF link annotation
- http://specimport.by/files/files/babanekamopowuto.pdfIn PDF document text
- https://didacostruzioni.it/userfiles/file/77854265633.pdfIn PDF document text
- https://iieng.org/editor/ckfinder/userfiles/files/rojesavubobawabevapu.pdfIn PDF document text
- http://meimagedance.tw/ufiles/files/rexekefib.pdfIn PDF document text
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/jolivupasogomanokeweru.pdfIn PDF document text
- http://grotech.in/userfiles/file/29858331702.pdfIn PDF document text
- https://hainutedecopii.eu/ckfinder/userfiles/files/65406031232.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136c8177a69a---70841301127.pdfIn PDF document text
- https://ecohort.com/userfiles/files/37923418396.pdfIn PDF document text
- http://cncforginghammer.com/d/files/53033650090.pdfIn PDF document text
- http://yeongwonenc.com/userfiles/file/46706209255.pdfIn PDF document text
- https://freebcard.com/ckfinder/userfiles/files/63640404268.pdfIn PDF document text
- http://e-hematologica.com/users/file/9956242165.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161411bbf053d7---31742107612.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425406cc355---vadutopadividexezomot.pdfIn PDF document text
- http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/74678669153.pdfIn PDF document text
- http://4darchitecture.org/img/all/44525056485.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/13775631144.pdfIn PDF document text
- http://ornito-silesia.eu/userfiles/file/37850961364.pdfIn PDF document text
- http://clubmaniacr.com/campannas/file/40678116765.pdfIn PDF document text
- https://nordavril.com/userfiles/file/tipiziwodowubana.pdfIn PDF document text
- http://alpha-th.com/userfiles/file/72318344651.pdfIn PDF document text
- http://chromavials.com/d/files/daduzak.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/il6elrhs9df06ukevbmug04am5/79631407837.pdfIn PDF document text
- http://linza-market.ru/upload/files/jufefijekupuxelemel.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_off0000d704.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD704 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF16 | 17008 bytes |
SHA-256: cd245013e68c1627fc008e4d4075d012201598648d19accb4f78640a9fbc76cc |
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font_02_sfnt_off00011ace.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ACE | 10296 bytes |
SHA-256: adc0d6737be1505b7720661ce8c049c5115cc43084e9a277cd441b6128ea0e79 |
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