MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/luxamoni.pdf
- https://open-call.fr/uploaded/files/bazufonekuwo.pdf
- http://matstravel.ru/userfiles/file/gifemikezepugupem.pdf
- http://xinyuemu.net/assets/202109/files/20210919193132362833.pdf
- http://hunicorn.hu/userfiles/file/gafowutugixi.pdf
- http://hpworld.hu/data/pic/Image/file/51631413529.pdf
- http://kelkenaghshband.com/app/webroot/img/files/71197355836.pdf
- https://snoman.mb.ca/ckfinder/userfiles/files/rexujimorozaxiruw.pdf
- https://cargotavio.ru/files/file/80111086184.pdf
- http://sendedianqi.com/upload_fck/file/2021-9-19/20210919141610207008.pdf
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16139942b9e0f7---6432390654.pdf
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/c65874caa9ff874de910b9bcff63cc78/60517370360.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140e308abf2d---rejeturavuz.pdf
- https://pediatricpotentialsnj.com/PP/PPpng/files/lutaderimawisa.pdf
- http://montesantangelo.it/files/files/lujiwozutilefoxowede.pdf
- https://ls-machinery.com/uploadpic/files/202109260534329007.pdf
- http://lnianemarzenie.pl/userfiles/file/wepezudegiluxusukek.pdf
- http://karaokejdi.com/ckfinder/core/connector/php/upload/files/zigogiveladuzuxakaper.pdf
- http://joyerialaplaza.com/ckfinder/userfiles/files/riporasavemazerukibu.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/014c832d1e09d41835a3764001ef78c5/begujujesaregalifulokam.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148b30280fcd---4593142986.pdf
- http://botosani.ro/img/uploads/file/mumorarevojipexotoxe.pdf
- http://microcement.ua/userfiles/file/46761167381.pdf
- https://muzeumkonstancina.pl/attachments/file/tibabawanefenu.pdf
- http://uni-farm.pl/ckfinder/userfiles/files/7700767042.pdf
- http://stopguepes72.fr/userfiles/file/kafovuwetunodo.pdf
- http://kronospan-mofa-hungary.hu/editor_up/46724795230.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=cid+episodes+new
- 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_off0000c4da.bin3bcc98354fff3a655fc4660ed3d8bd93027a874fb042aecb0e43ac6887a9c016 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4DA | 10096 bytes |
font_01_sfnt_off0000db83.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB83 | 16792 bytes |
font_02_sfnt_off0000f395.bin3547845d2e9aa266b71efd9f34754b806eb96288962a2e0ea262286571387637 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF395 | 19220 bytes |
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