MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS uploads. The presence of numerous URLs, including those on disposable hosting and compromised sites, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://smidgel.ru/uplcv?utm_term=how+do+you+put+a+live+wallpaper PDF link annotation
- https://thokhoavietnam.com/upload/files/40597228209.pdfIn PDF document text
- http://myapartment.de/web/editor/files/37316962359.pdfIn PDF document text
- http://phoiinnhiet.com/images/uploads/files/dadufaxesaxateb.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/47323063782.pdfIn PDF document text
- http://geoass.eu/userfiles/files/49443719956.pdfIn PDF document text
- https://fishboat.hr/files/58694564513.pdfIn PDF document text
- https://yar-net.ru/userfiles/file/razixo.pdfIn PDF document text
- https://kalashad.com/userfiles/file/19674125246.pdfIn PDF document text
- https://matraci.info/UserFiles/File/ruxevagiv.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/cc5d2d1fd74087a04b9c4a2d61bef053/nilaxereso.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/jugulibuwenefagape.pdfIn PDF document text
- http://konberdbio.com/upload/files/lefopuzotudojazawa.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133ce902c9d8---tufuravepojig.pdfIn PDF document text
- http://jszl-rolls.com/filespath/files/20210905161424.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b62fba43f2---78077523234.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1614266b3ecb5c---89706091980.pdfIn PDF document text
- http://giustizianuova.it/userfiles/file/vipodoxowoxagaxetamoseja.pdfIn PDF document text
- https://conviviodihera.it/dati/upload/file/35988242652.pdfIn PDF document text
- http://adveotec.com/img/file/80074726672.pdfIn PDF document text
- http://mallenmediations.com/mallenmediations/images/userfiles/file/2820326759.pdfIn PDF document text
- https://alves.bg/ckfinder/userfiles/files/48059642432.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/vrhihoi41gv6glkh4h36gotqki/dazurorewamilubakeba.pdfIn PDF document text
- http://kechengchem.com/upload/files/48455509794.pdfIn PDF document text
- https://harrisitalia.it/uploads/file/mokidumutezo.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210914_20AB4490B3F25800.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_off0000cb91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB91 | 16984 bytes |
SHA-256: ca8fbbb8bb46419747def4c8e9f4dbc899eb99c640369d9b41e9fa4065b9bbe0 |
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font_01_sfnt_off0000f77c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F93 | 10472 bytes |
SHA-256: 74338b0dd549449d27b8a592196f1e2eccfba104dda5410a8fc0a18d3f942070 |
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