MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains multiple embedded URLs, with one heuristic specifically identifying a link farm on disposable hosting at http://silesiacapital.eu/data/file/ridoviva.pdf. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 5
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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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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 http://silesiacapital.eu/data/file/ridovitediva.pdf
- http://tuttotop.com/userfiles/files/16444042171.pdf
- https://detskeihriska.eu/ckfinder/userfiles/files/38953491150.pdf
- http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/lepepox.pdf
- http://bbfederico2.net/userfiles/file/savunusokebufada.pdf
- http://fsgzb.com/upfolder/e/files/20210908221844.pdf
- http://grandioso.asia/editor_upload_image/file/39151718406.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132321406f5f---rivalow.pdf
- http://www.mueblesgamez.com/ckfinder/userfiles/files/nelewumofe.pdf
- http://medica-eg.com/userfiles/file/kutifopuwuret.pdf
- http://bamor.org/userfiles/file/34376532654.pdf
- https://alwillislifecenter.org/ckfinder/userfiles/files/51800364164.pdf
- http://zamaro.cz/images/fcke_files/file/29607773579.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=android+games+universe
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7c9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C9 | 16792 bytes |
font_01_sfnt_off0000efdb.binf3dbcba9076a9e8eb1c31aed978bb2032b9ff2d85975b12d6d2303341d7f060f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFDB | 16672 bytes |
font_02_sfnt_off00011ae4.bin6bcd71f039451ec0405f62a358640976c5cfc51b178a5cb2207c29b41e622aa1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AE4 | 10592 bytes |
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