MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as a link farm, with many URLs pointing to potentially compromised or disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The presence of numerous external links suggests an attempt to redirect the user to malicious sites, likely for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://coaching-scolaire.net/userfiles/file/96014025072.pdf
- http://banghetretunhien.com/media/ftp/file/dugonusufuvesigawinax.pdf
- http://esangsok.com/upfile/files/kemozujemezodawarog.pdf
- http://bobmeetin.com/media/galleries/files/nodupokupig.pdf
- https://onutglen.com/caningest/images/file/pozuroxowil.pdf
- http://wtmongolia.com/materials/file/gomidoweda.pdf
- https://kurek-rowery.pl/user_pict/file/pubaduvawejejiket.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613311f8e11fd---73946091535.pdf
- http://optimumnieruchomosci.pl/uploads/userfiles/files/45975004710.pdf
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/woralorozasawedip.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612f075842fda---92642207976.pdf
- https://abcoegypt.com/userfiles/files/lizudifaxovelixolu.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5e8a7c4b9---latuled.pdf
- https://pmrmhss.com/userfiles/file/36962541859.pdf
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/tefigo.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a03e8b1c0a---xofevilufozujen.pdf
- http://tiramisu-o.com/yamituki-n/uploads/files/90034441656.pdf
- https://igruppe.no/ckfinder/userfiles/files/1462420810.pdf
- https://maviet.vn/upload/files/48546882344.pdf
- https://mumegram.com/userfiles/file/38689808712.pdf
- http://thuexe7cho.vn/upload/files/3666979778.pdf
- http://crimesla.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xotizoja.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/774ijeu8p2pljjrbv5vgm03j29/63722993709.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6fba1cf5b---mokojetom.pdf
- http://virtuozi.ru/sites/all/sites/virtuozi.ru/files/ludalupovigepovolapidom.pdf
- http://6nergy.fr/6nergy/sites/default/user/file/favejefosutafedi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=best+android+video+making+app
- 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_off0000e4c8.binbce5dc5268f027fd2ab86cec0bf31b349ec9bf3c48b3b7f7a7c709915a4466c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C8 | 10900 bytes |
font_01_sfnt_off0000fddc.bin31ee4c24c990e482e41ca9f01f80cddb09eaba301cec56afeb6286ed8d16e421 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDDC | 16732 bytes |
font_02_sfnt_off0001293f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1293F | 16792 bytes |
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