MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a large number of external URIs, many pointing to disposable domains, suggests it is designed to lure users to malicious sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a link farm on disposable hosting, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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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://cructi.ru/uplcv?utm_term=exercises+on+has+and+have PDF link annotation
- https://mabuksusu.com/contents/files/mevoxi.pdfIn PDF document text
- http://ipceurope.be/assets/file/2743818130.pdfIn PDF document text
- http://apvn.info/userfiles/file/30472020885.pdfIn PDF document text
- http://kuhomania.ru/ckfinder/userfiles/files/95738838114.pdfIn PDF document text
- https://www.luxboss.com/ckfinder/userfiles/files/mazifitevofefovi.pdfIn PDF document text
- http://i-physiology.ru/upload/dosabevewerepin.pdfIn PDF document text
- http://homokkepek.hu/editor_up/38780981408.pdfIn PDF document text
- http://autoscuolapezzano.it/userfiles/files/dagovibap.pdfIn PDF document text
- http://mathrainbow.com/userfiles/file/19190568523.pdfIn PDF document text
- https://doina.md/fckeditorfiles/file/busita.pdfIn PDF document text
- http://studiolorenzoni.eu/userfiles/files/fajamurizagekexenexexi.pdfIn PDF document text
- http://tecniagua.es/uploads/ckfinder/files/38312812956.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/d495ea99b72c7d54a79c9e9115eb8f5d/15347856028.pdfIn PDF document text
- https://consurs.ro/ckfinder/userfiles/files/sowedenufi.pdfIn PDF document text
- http://eschool365.in/js/admin/uploadfiles/file/xupupemipuxovemawetiz.pdfIn PDF document text
- http://olivetheater.com/userData/board/file/bugalaja.pdfIn PDF document text
- http://thietbiytedaibao.com/media/files/vojodatosusiluke.pdfIn PDF document text
- http://decamiones.com/userfiles/file/3465214151.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/bulitajoxelabisiliguniv.pdfIn PDF document text
- http://nhakhoasaigonkimcuong.com/uploads/images/files/xufupibudogigoset.pdfIn PDF document text
- https://schmitz.cz/res/file/judugolarolagoregeku.pdfIn PDF document text
- http://umrllc.com/userfiles/files/sadexapopiw.pdfIn PDF document text
- https://psihodesk.ro/ckfinder/userfiles/files/potesijuwi.pdfIn PDF document text
- http://chipgene.com/image/files/20210916_012145.pdfIn PDF document text
- http://envisystem.com/upload/userfile/files/89761417396.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_off0000afd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFD9 | 15168 bytes |
SHA-256: a09f59a8d2d4a626dc0efc609e152b4b3c3f06afb7cd267a1faf905774a86e1d |
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font_01_sfnt_off0000d667.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD667 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ee7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7E | 10472 bytes |
SHA-256: f4e3f3c6f1b6e36b3b8af59f38935894fddfef2276752a4fa540228a1369edba |
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