MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the ML_NYX_PDF_MALICIOUS flag strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://coretry.ru/uplcv?utm_term=shadow+fight+2+hack+download+android
- http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210921_C9537386EABB78D4.pdf
- http://maketmaster.ru/admin/ckfinder/userfiles/files/3690577329.pdf
- https://tttinox.com/upload/userfiles/files/50375223329.pdf
- https://autohausnschmidt.de/userfiles/file/gowebigoveled.pdf
- http://risorsaterra.it/userfiles/files/tukifutasimaludurupidap.pdf
- http://tmacfashion.com/ckfinder/userfiles/files/38635873692.pdf
- https://www.igescanada.com/ckfinder/userfiles/files/vesojaxakuxeru.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/kf5ooqc46v41fo2km50vr3flne/konexigumoduvaleta.pdf
- http://automotiveenergy.cz/userfiles/file/7344138599.pdf
- https://djennebeads.com/nbloom/fckuploads/file/wasozeragavaragodubuzuku.pdf
- https://nhabe.com.vn/ckfinder/userfiles/files/fagajavetafodukibotexozos.pdf
- http://www.gamylai.vn/uploads/files/53857166418.pdf
- https://maisonforville.be/documents/file/8653506997.pdf
- http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/wetemape.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/6c0447a741e8883adf3c24704b511646/84305736250.pdf
- https://etcbt.com/userfiles/file/ruvukorisurijafetavibab.pdf
- http://www.uds-myanmar.com/image/upload/File/boletewegoludabikabasi.pdf
- http://studiocommercialedelpiano.it/userfiles/files/30581159955.pdf
- http://sangjeom.com/userfiles/file///17898551101.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614e5a49b79fa---lavufimu.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/a6d2ead1c7da43efc8df95a767b2dd5e/ginenadifajobibaw.pdf
- http://hytechcommunications.com/userfiles/file/tixudililojevarabugisa.pdf
- http://zjqzzx.com/uploadfile/file/2021090309482473499.pdf
- http://firmykominkowe.pl/Obrazki/edytor/file/8583988280.pdf
- http://vagyonvedelemszolnok.hu/admin/fck_upload/file/podizuzilagipadonevano.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b576.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB576 | 16792 bytes |
font_01_sfnt_off0000cd8d.bin82c73ed5eff6a88238131d7ad0ff9220ea631a4c1695a20c9baa20614b81732d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD8D | 10828 bytes |
font_02_sfnt_off0000e65f.bin7e37cc76b3770b50896d95bbb3d37eb1f4bed9542cb6127a132066380e6a2a46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE65F | 16168 bytes |
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