MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL destinations strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://wastran.ru/uplcv?utm_term=what+method+you+should+override+to+use+android+menu+system
- https://www.sesc-am.com.br/Selecao/ckfinder/files/movuvamobuvimewelinek.pdf
- https://gitedu.in/ckfinder/userfiles/files/bakudemalawoxala.pdf
- https://vandolderskb.com/images/usr/51411112125.pdf
- https://ocw.tw/uploads/files/65746174139.pdf
- http://tsrmmessina.it/userfiles/files/zinavazufatolat.pdf
- http://pension-erlkoenig.de/img/editor/file/piweja.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/5116bf8516069309abb8ff2735d9d1d6/47937504542.pdf
- https://kenhquangcao.vn/uploads/files/majafuzenozo.pdf
- http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135818368a49---10700789677.pdf
- http://karlsbach.de/userfiles/files/89720597784.pdf
- http://zoscm.zohukum.com/ckfinder/userfiles/files/13801147477.pdf
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/xonodi.pdf
- https://aradmissions.com/ci/userfiles/files/7101367504.pdf
- http://wpchkg.com/upload/image/file/20079037669.pdf
- http://yksskj.com/ckfinder/userfiles/files/xaramixuwifem.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/161358e78d9c20---tiramigivujo.pdf
- https://smlstripedbass.com/home/rock/public_html/ckfinder/userfiles/files/bimabigumun.pdf
- http://alacartedesign.de/userfiles/file/marutigu.pdf
- https://o-dance.com/upload/files/rawujowowimatagis.pdf
- https://pnvvr.ro/userfiles/file/36945449864.pdf
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/40203517475.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/98ccde82fcec2eead89aed6c2aafc3ef/55772054155.pdf
- https://ht-cooling-j3t.com/contents/files/fiwus.pdf
- https://observatoire-omic.org/documents/file/29975787926.pdf
- http://parkergeneralcontractors.net/userfiles/file/domesalajuxaludafufi.pdf
- 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_off0000bf80.binf1bb02bd3a0efb984b4000e4357796b639c589caa56adc7a01959cf115ab2414 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF80 | 15376 bytes |
font_01_sfnt_off0000e6cf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6CF | 16792 bytes |
font_02_sfnt_off0000fee6.bined687703ead84813d8c171322460eee4eb3bda587afa1369b43baebae336b6d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEE6 | 10788 bytes |
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