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 or disposable hosting. Heuristics indicate this is a link farm designed to redirect users, and ClamAV detection confirms its malicious nature. The ML classifier also strongly flagged this PDF as malicious, suggesting it's part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://liniagdanskzydowo.pl/files/wujovutoxilibijujosaj.pdf
- http://iziusb.com/userfiles//file/vigunuzaxuramev.pdf
- https://www.cosanuesa.com/componentes/editor/ckfinder/userfiles/files/87663684455.pdf
- https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/7077b67dde37f1b57406984677770752/43087672156.pdf
- http://chinamakina.com/userfiles/file/dipemiruxe.pdf
- https://urbanshapes.in/userfiles/file/nawujofuwuzasijideti.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f5d6b9f73---wamatadavijorifekeruxulu.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16099add6ae0a9---jezijemone.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/50eab5de3dd1eb62c665063ce2a338d5/gowotilegizexuwimegigij.pdf
- http://cloverpark1959.com/clients/51168/File/54934213776.pdf
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a78d1b6024d---naxokokifipel.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee60add5b05---49990265137.pdf
- http://hfengly.dk/skoleportalen/userfiles/file/28954638355.pdf
- http://klwas.org/userfiles/images/file/vugitiloxoponito.pdf
- http://trevelci.ru/ckfinder/userfiles/files/pimibuvoxonetapu.pdf
- http://satakantaresort.com/user_img/files/wivinub.pdf
- http://dachastyle.com/userfiles/file/50571766645.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a6039b9b8b4---murojub.pdf
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/98e0ca3bea6458d5ff6ca6e08af2d70f/fitikevililixutomuno.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/072e20b42b91b1f2af2cb5d9035f9117/99381844588.pdf
- http://paykaaluminiya.ru/ckfinder/userfiles/files/rabim.pdf
- https://vildmarksjagt.dk/userfiles/file/82612499817.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=cambridge+english+for+engineering+audio+download
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/cbb0df20b006381b87a753030113f6ba/gagokimezemelowosukagog.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_off0000e7f4.bin11c555456f4b62c6b68dbeb4e49ef6f453224d2419238e1e0f76a5d2cdbe417d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F4 | 17148 bytes |
font_01_sfnt_off000114e2.bin7ab6ad9fbfbec4926787a8904902b8201ef0c5ca0abd186117bba29d2713fa87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114E2 | 11060 bytes |
font_02_sfnt_off00012e3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E3A | 16792 bytes |
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