MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous external URIs, many on disposable hosting, and the 'ML_NYX_PDF_MALICIOUS' score strongly indicate malicious intent. The document body, though heavily obfuscated, likely contains lures related to app downloads or callback scams, as suggested by the 'PDF_URI' and 'SE_QR_LURE'/'SE_CALLBACK_LURE' heuristics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=samsung+galaxy+s2+app+free+download PDF link annotation
- https://latework.cz/soubory/tufamelo.pdfIn PDF document text
- http://dongphat.net/upload/files/75831173978.pdfIn PDF document text
- https://glozor.com/userfiles/file/25718174702.pdfIn PDF document text
- http://cmtdental.com/upload/ckimg/files/98463696470.pdfIn PDF document text
- https://capitalsyndic.com/userfiles/file/lomusojuxetowinojobet.pdfIn PDF document text
- https://reviewz.eu/app/webroot/files/userfiles/files/powekopivivef.pdfIn PDF document text
- http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/wilimowexikunabesax.pdfIn PDF document text
- http://sellmysayarah.com/userfiles/files/64345337485.pdfIn PDF document text
- http://peaceinsrilanka.lk/userfiles/file/xilaxazutagalotekeda.pdfIn PDF document text
- http://kssi.ir/public/userfiles/file/gomumi.pdfIn PDF document text
- https://vsetinrally.cz/userfiles/file/birikasavobuzopujotiperuz.pdfIn PDF document text
- https://www.gullyracing.it/admin/ckfinder/userfiles/files/63566261555.pdfIn PDF document text
- http://marjoleintje.nl/include/userfiles/titebonuluxonavetonaw.pdfIn PDF document text
- http://naoshima-habitant.com/images/blog/file/dumikubap.pdfIn PDF document text
- https://eldorado777.ro/upload/editor/file/84170907864.pdfIn PDF document text
- http://telekommarketing.com/firme_data/files/lulasuwerufimisurepol.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4180ae784---vuwodomorobo.pdfIn PDF document text
- http://ueros.fr/admin/ckfinder/userfiles/files/47814999338.pdfIn PDF document text
- http://fruitsad.pl/images/file/rabiwipajoxuji.pdfIn PDF document text
- http://textingrights.com/userfiles/files/5355975828.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/fc114e89dc14907f17afff0d8d445199/rajumikomalabenepeb.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_off0000d550.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD550 | 11248 bytes |
SHA-256: 474d09473dd64a89158bcbd8fb35c0ec243b9dc5e92e4c88944704a28189d733 |
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font_01_sfnt_off0000ef94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF94 | 17700 bytes |
SHA-256: 8f5b3e8278ca45473cb28ef7b69b2b821e2762b7fd42b3b7e00a7aaa875cea30 |
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font_02_sfnt_off00011d53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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