MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to lure victims to potentially malicious external sites, aligning with spearphishing tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://huntic.ru/uplcv?utm_term=eclipse+twilight+book+pdf
- http://life-worldwide.org/assets/uploads/files/xoxunapozirat.pdf
- http://eltprof.ru/userfiles/file/bisatogorikuzizalirotuv.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9d3ddc4921a40761e5c5af992db38cc0/fezeguximamopiguwixibo.pdf
- http://sfipl.in/userfiles/file/xigevu.pdf
- http://ebus.cn/up_file/file/fevubugumodixubipete.pdf
- https://ikomsolutions.com/admin/userfiles/file/munutabivomopavekarunow.pdf
- https://unique-u.biz/images/uploads/file/mezotegir.pdf
- https://mygoaltv.org/ipp/images/uploads/files/wironajujemobi.pdf
- https://www.seblocation.com/ckfinder/userfiles/files/tabul.pdf
- https://trisyscom.com/userfiles/file/pizajarogimasotigajevu.pdf
- https://ratosatu.com/contents/files/25830235388.pdf
- https://franciscojaviermoreno.com/DocsCKeditor/files/65663884115.pdf
- http://vssteel1999.com/ckeditor/userfiles/files/desovapufijif.pdf
- http://185.33.116.145/~acus01/upload/files/vunekimemi.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/ac1ce9934ac421dbae6e82c2402b71cc/65570706762.pdf
- http://showpelec.com/data/file/20210909_183526_567.pdf
- http://goldartline.ua/userfiles/file/solemudusujaminuwimovepoz.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/93f1c017c94c073eb83b32a5421fe7c1/57149608524.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/e2841fd1c1865c1150b7174eda9d940b/wenose.pdf
- http://www.ktgroup.co.uk/ckfinder/userfiles/files/62682618978.pdf
- https://gemicilojistik.com/userfiles/upload/file/nakatorubexatoxonebifebot.pdf
- https://alkirbilaw.com/userfiles/files/25683958190.pdf
- http://gomsuhoangminh.com/app/webroot/uploads/files/1834129704.pdf
- http://ledspectrumthai.com/ckfinder/userfiles/files/49106707504.pdf
- http://tdjl.com/uploadfile/file///2021090202380718.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_off0000dc1d.bin3fc4ddc7c743fe48be7be18ddcbb395f8846bb0ffdcf3c347dfe2b98b90d80c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC1D | 17796 bytes |
font_01_sfnt_off00010a4a.bin02195aa238c7b069054560fc8c81da074b8fd88e3546a880d993f4e72fa1fb2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A4A | 10836 bytes |
font_02_sfnt_off0001230f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1230F | 16792 bytes |
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