MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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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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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://medvor.ru/uplcv?utm_term=critical+ops+mega+mod+menu+apk+2021
- https://shoppingplanet.ro/ckfinder/userfiles/files/buvefoxudovedekejevimelo.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d94009d700---27361181830.pdf
- http://bogelaipigeon.com/upload/file/55800722115.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/5ncfgi3uerqgikk7r872t0bctn/33429741152.pdf
- http://1960ihs.com/clients/e/e0/e0b58928a48036c9af8d6cfc9cffdd99/File/86632782085.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa092ba0d4---lafagofuweloletigedozom.pdf
- http://chiari-web.com/ckfinder/optimist/files/57406849440.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609be42875c95---jomegilagisakijomakuro.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc657dbd30f---39501561950.pdf
- https://bhsbeacon.com/FCKeditor/file/53478747942.pdf
- https://ooo-kenk.ru/userfiles/file/gafewokobika.pdf
- http://biosafety.biz/ckfinder/userfiles/files/rilegevizamulupegovu.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611af09ecce0c---22991405590.pdf
- http://phillipsbricksalumni.com/clients/56168/File/65158529696.pdf
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f69bf18cd---33966689858.pdf
- http://mousike.it/img_ins/files/83055367716.pdf
- http://novelinternationalschool.com/ckfinder/userfiles/files/9878320376.pdf
- https://isosklo.cz/uploads/63377063614.pdf
- http://bluebirdcanada.com/FileData/ckfinder/files/20210807_9695FC52360DBD27.pdf
- http://szpital-sulecin.pl/images/fckfiles/file/moliwitafu.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ac114046d3e---fifonasiputesapidug.pdf
- http://shukokai-voves.fr/userfiles/file/wisos.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_off0000df68.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF68 | 16792 bytes |
font_01_sfnt_off0000f77f.bin083d47649077755abf784a3770561646d176b491620f76955d7c74da0d688e08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77F | 11376 bytes |
font_02_sfnt_off0001122a.bin856e40ee1d2c7c24295b02bbfd3bb06e71ae8ad0e417f705a5707c3887cb5a00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1122A | 16688 bytes |
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