MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm with numerous external URIs, suggesting a phishing or malware distribution attempt. The presence of a 'download button' lure further supports this, indicating the document is designed to trick users into downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://oniceh.ru/uplcv?utm_term=science+10+module+3+answer+key PDF link annotation
- https://kimcert.com/E/file/28738474813.pdfIn PDF document text
- http://seednseed.com/admin/fckfiles/file/bejigibafikatesi.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/11298264962.pdfIn PDF document text
- http://kanchanaspa.com/ckfinder/userfiles/files/26321591526.pdfIn PDF document text
- http://tcgardening.com/userfiles/file/2021091409354673499.pdfIn PDF document text
- https://accuratesearch.com/userfiles/file/mupuwijiwa.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/toropizifefedoba.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/97843430550.pdfIn PDF document text
- http://pantanalmsnews.com.br/ckfinder/userfiles/files/68216605019.pdfIn PDF document text
- http://hoya-system.com/uploads/files/202109042250245695.pdfIn PDF document text
- http://frangarcia.eu/upload/file/jivane.pdfIn PDF document text
- https://sunsetlearningcenter.com/userfiles/file/184971775.pdfIn PDF document text
- http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/51380146675.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/b07o5jm0qs7v0a4nag22sbbjeg/jenisunuvolevufa.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210901_025348.pdfIn PDF document text
- https://hw-power.com/uploads/ckfiles/files/61378c576aa5a.pdfIn PDF document text
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gufezefavopipapajigat.pdfIn PDF document text
- http://cpk.by/ckfinder/userfiles/files/mugefififoduguzigidiful.pdfIn PDF document text
- http://playoz.com/ckfinder/userfiles/files/melororerilori.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130ec20a47a5---92526625380.pdfIn PDF document text
- http://qdxqw.com/uploadfile/file/negetibunawowizeda.pdfIn PDF document text
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/10725542611.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/83570962626.pdfIn PDF document text
- http://clinivetmadonnadirosa.eu/userfiles/files/povusurexamog.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_off0000f45e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF45E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010c75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C75 | 11244 bytes |
SHA-256: 525944abbbfbc3b4da8ac7f8c6ca45b94f298651591ac03395c94b2eedb10a52 |
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font_02_sfnt_off000126e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E7 | 18956 bytes |
SHA-256: ec8188b822540fbf5779db65fecfd5f98eaa3919fbcda6d7473b38c43b69e722 |
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