MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to various websites, many of which appear to be compromised WordPress installations. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting an attempt to obscure the true destination or evade detection. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier suspicious score 0.2862
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://smidgel.ru/uplcv?utm_term=enlever+filigrane+pdf+online
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/f4ad4577d66b65996a855babfb26c7cf/43757847305.pdf
- http://gancza.pl/userfiles/file/somamavivamofaxu.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102d597e6086---zilogugegimen.pdf
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/bd2bfa25d58656ee9eb79cb8d8766a26/78237873488.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16109bb1309e3c---gepit.pdf
- https://braintreeclinics.com/app/webroot/img/files/juxarigezadifumotoj.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8eb411463---4963870182.pdf
- http://francescofesta.it/userfiles/files/fivafu.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5768e3216f---50483994522.pdf
- http://momsystem.ru/public/file/43976529430.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/9o14f969tv0dap46rv9e6r2m65/jagamufezedojunokejasi.pdf
- https://atpl.aero/ckfinder/userfiles/files/82706973739.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/e7267f45de657099f6e77c32a374ecce/zifuzopazagelimofobezirop.pdf
- http://spearsyounglegacy.com/clients/b/b2/b2c23f164518415ec8f3c1c8d0af542d/File/74730133456.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a4a505c914---70645863339.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/ip9k3rb1pjrn7pik4dascvhtin/xoxodovafosodumixedo.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/f7d884d44dbd721eb681c0b298fcd632/10971040383.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b462737c2da---38984330200.pdf
- http://kangs78.com/clients/66216/File/sodoj.pdf
- http://alexandercdg.com/clients/36029/File/dakixifanutas.pdf
- http://artgraf24.pl/userfiles/file/54082124430.pdf
- https://filetorme.com/upload/files/39316270417.pdf
- http://nusamulticentralestari.com/Uploads/userfiles/files/85064939504.pdf
- http://armanetti.com/images/zilelezudugixazemeker.pdf
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/82279770238.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/3d752d8c314fa5ce78a3e2774a2f0676/wokosilaruboloxa.pdf
- http://envigest.cz/upload/file/24244536729.pdf
- 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_off0000dd7d.bine83810f9902299a7c0a20bf58b17546f951e3968f3c51a1a0ea052d42ec590d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD7D | 19200 bytes |
font_01_sfnt_off00010e2d.binf2ede723c9e1e593a651e7b994ad1cf8b318b88ed3bbaffd3749519fabefd40b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E2D | 10456 bytes |
font_02_sfnt_off000125bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125BD | 16792 bytes |
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