MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous embedded URLs pointing to potentially compromised WordPress upload directories and other disposable hosting. The document body is unreadable, but the presence of these links suggests a lure or redirection mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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://inwebjor.ru/uplcv?utm_term=free+online+ethical+hacking+course+with+certificate+for+beginners
- http://ride.hu/images/uploads/files/50840886662.pdf
- https://arabacioyunlar.com/calisma2/files/uploads/34972920091.pdf
- http://camionespanamericana.com/userfiles/file/beturelatifavapefawil.pdf
- https://autosaloncenter.com/uploads/file/11401411025.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7474632da---38721338330.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/6s0ccmtr7pprb0t4d0mskfhcn6/dufukoko.pdf
- http://shuimotongyuan.com/userfiles/file/14381483983.pdf
- http://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/2804595163.pdf
- https://ptogel2.com/contents//files/vovimevabove.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/liae2t5gbjp9gr6ouksok6jpt4/1405264966.pdf
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/2978e233f0a137e0e130057ba2d36ecd/pefukabupixoje.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/krn8dbqb929omo4scohba6cj8o/94139694275.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607432f49d5d6---8895998053.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/620d663b5ac18b3e8d080c8e08356a60/sudifi.pdf
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/c296a3301fde6ef00b882ba739513970/wetukiwegobikunakan.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16077da7ab9567---46256315817.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/enrn6uq3pj733ke35d4sq8mva7/peduzubokegigagasiniboda.pdf
- http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/ftc25q8pngc4qqiqravanm89l5/xujinuxenoxuzejovupiwok.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/16be011b7147532064ca1f5f2bab53f1/77668112846.pdf
- http://anhuifan.com/upload_fck/file/2021-5-29/20210529032023567142.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/51dbc8c4e63f1719fd3778e7e21c2ac6/89017967786.pdf
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/4654e11cc26dfcadeb7952378c056599/8352261294.pdf
- http://winfielddeli.com/ckfinder/userfiles/files/92576963806.pdf
- http://austria-ex.com/images/blog//file/gozuvutamoseg.pdf
- http://secretlove.ch/ckfinder/userfiles/files/78923248773.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_off00010bed.binb1483b351b73c916a8ca3fad73307eb0d7e7ad35521f20c0c16f2379f71f09dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BED | 11012 bytes |
font_01_sfnt_off0001257d.bin297d156c57f99d0a9d357fc6ed3699dd2729b555ca30bc2442bd4383969f0d85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1257D | 17096 bytes |
font_02_sfnt_off0001520c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1520C | 16792 bytes |
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