MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites hosting other PDFs. This behavior is indicative of a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/3kt65ptqtc4undbei0meejgvq2/70669393912.pdf
- http://ohappy.org/userData/board/file/12909167755.pdf
- https://signika.pl/Upload/file/vigodudag.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2013e7d189---wenezemedojo.pdf
- http://guides2alpes.org/uploads/file/10913775344.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/d60d1bb22027f40e31ade85acc89fac8/vekisezi.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5a7f41c82---nifepuradurifaz.pdf
- https://youkuvpn.com/upload/files/1940450623.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/bgvh8duh8a5huktsi5rug9tcrh/67278223538.pdf
- http://xdata.pl/app/webroot/img/ckf/files/46412624384.pdf
- http://gloucesterclassof81.com/clients/23558/File/buxofi.pdf
- https://tmtteks.com/files/gutoxerelibojezepurodi.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/0cb7005f00d3d1ac546201660c2add3c/noxabifunewovimogetida.pdf
- http://kondicionery-lubertsy.ru/upload_picture/file/gulewigitufojazexegetu.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/mabarabedapenalo.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e425e96f4---xiguvilasubopemeputiwizam.pdf
- http://zonweringbelgie.com/ckfinder/userfiles/files/pavijogowiliniliju.pdf
- http://ahkjt.com/upfile/file/bobitubunikozi.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/0dr4ll2oj39bas2cgt8qbf8s6h/67439580208.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/c8224daf60f932166f1919878d392fb8/34661227653.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a644eb29d4f---berejunugevovige.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6dce3925bd---6885219506.pdf
- https://techson-cctv.com/upload/file/18415757366.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d86748e3c64---wajofipanalolal.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/g9iv2mfqj8o59mu8lg31j0qq6e/bovuvawidese.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=suite+life+of+zack+and+cody+commercial+episode
- 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_off0000f571.bin1195ea62a549ad855c2e2748209da062b32ef01f7d2f5d49a3ff5af54e58b4f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF571 | 11220 bytes |
font_01_sfnt_off00010fc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FC8 | 16792 bytes |
font_02_sfnt_off000127da.bin2c2f45ba50c14b7db0933f08e7da1bb5e7bc220f01b6c52d2ee2f3d35789de80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127DA | 17832 bytes |
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