MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=corporate+culture+and+performance PDF link annotation
- http://gps-tw.com/CKEdit/upload/files/53993666354.pdfIn PDF document text
- https://rajnnuhiddje.se/userfiles/file/77774174035.pdfIn PDF document text
- https://idea-web.ro/app/webroot/files/userfiles/files/wexafofuw.pdfIn PDF document text
- http://tianfonmm.com/d/files/lixifijosezedula.pdfIn PDF document text
- http://autosvilar.com/uploads/ckfinder/files/91853992909.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614137fab94ea---42979295623.pdfIn PDF document text
- http://trineckevzdelavani.cz/webpagebuilder/ckfinder/userfiles/files/tasutelevosufet.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/8toe387ni91m3fsc8lau7d2rq0/97695085378.pdfIn PDF document text
- http://48bulls.com/js/upload/files/4887789856.pdfIn PDF document text
- http://nanobubblevietnam.com/uploads/userfiles/file/kujuxisoronuxit.pdfIn PDF document text
- https://appchecar.com/ckfinder/userfiles/files/28465207064.pdfIn PDF document text
- https://ekselantechnology.solutions/ckfinder/userfiles/files/16679158923.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615801594c52a---50649178126.pdfIn PDF document text
- http://aztkgb.love-mrt.com/upload/files/zivevubezosorafofikereze.pdfIn PDF document text
- http://vdi.vn/userfiles/file/34163080176.pdfIn PDF document text
- http://ozdoby-betonowe21.pl/Upload/file/xibukowifobiteg.pdfIn PDF document text
- https://zohopinler.com/calisma2/files/uploads/favalinuxusawana.pdfIn PDF document text
- https://bancodevida.com/bancodevida/admin/images/image/file/temodijifanegexig.pdfIn PDF document text
- https://fundacjaartfreeart.pl/userfiles/file/nijefukiva.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16153dfc529e5f---98046658381.pdfIn PDF document text
- http://www.hebrewforreadingcomprehension.com/content/4580219142.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/mevinunevasoxod.pdfIn PDF document text
- http://volareinmongolfiera.it/userfiles/files/37012691429.pdfIn PDF document text
- https://karolinanowak.com/userfiles/file/vifijanobesovetiwuxudi.pdfIn PDF document text
- https://projetounificado.com/uploads/files/zevijolenixiwaxokevive.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_off0000b55e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB55E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD70 | 17204 bytes |
SHA-256: ba9c75ebb6992e6a5dacab3355793e2181d7555c52ac8bf8468e20ae13914a41 |
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font_02_sfnt_off0000f91e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF91E | 10652 bytes |
SHA-256: 13ce57548e75ce2330b0dbdc89e50514dd6279e55fbef46403c0d982508cc16a |
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