MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress upload directories. The ML classifier and ClamAV detection strongly indicate maliciousness. The primary purpose appears to be a link farm, likely intended to lead users to phishing sites or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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 http://bumsnab.ru/uploads/files/tomiv.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d85238a9b---46317945668.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/c2nkm3oa8lucmvb3v4gkn1suqj/fuvododapisolupivugetenat.pdf
- https://smobiil.eu/userfiles/files/mugogenig.pdf
- https://bawwabatrizq.com/userfiles/file/52772609389.pdf
- http://abwalabamaave.com/uploads/files/xixizakumajan.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a3689fded---14623243987.pdf
- http://zoncmswebsitebeheer.nl/files/editor/file/77820843716.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/5ab9b9d414816e608eeda236694e4dd4/vuweladag.pdf
- http://ohappy.org/userData/board/file/xenuvetam.pdf
- http://windowsplusllc.com/ckfinder/userfiles/files/radesanenizo.pdf
- http://airconbank.com/upload/fckeditor/file/guzodebuzevobibiwixe.pdf
- http://abwferrellpkwy.com/uploads/files/1844001529.pdf
- https://guapa2.com/admin/fck/file/44973480027.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160a54758a5a00---pisutob.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e700f0b3fe8---38052140165.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/ed2bf23217880152258d976002330b8c/97644048525.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/843b57b00bdb1f8c2febde4791518d04/xefukidifivedupolix.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adca3a727a0---jeviliwubakupem.pdf
- https://invest.pl/userfiles/file/visifanuvumuwugaxevisi.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/16dc5f15c64bc6c2105dcc406e84256c/9184539391.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ff72155d3---nozamer.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/leegogskskaha0prammp6v9ai7/xinopanukijopisezemoruvuv.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606faccdd6959---lexobifaxigigewu.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e61449178ff---wadisubokejegaba.pdf
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/79841509470.pdf
- https://blokhol.com/upload/files/81034813016.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=choices+values+and+frames+book+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_off0000fe37.bina25401f27b8aaa193d5ab10609091ed081f35b69cc18cb6b2cb48722ed441be5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE37 | 11216 bytes |
font_01_sfnt_off0001180f.bin08f3007711eed2fae8dbb735363ab357c5768e68c51a114ebd14b9e3d4f9f468 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1180F | 17176 bytes |
font_02_sfnt_off0001450f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1450F | 16792 bytes |
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