MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://queure.ru/uplcv?utm_term=never+cease+to
- https://vibangnhadat.com/uploads/files/zavagulinawa.pdf
- http://byecook.com/ckupload/files/14571798740.pdf
- https://chingchia.com/uploads/files/202109020420193498.pdf
- http://nessium.fr/userfiles/file/zukumoxutusetokekulet.pdf
- http://bright-mineral.com/uploadfile/file/2021092500523125.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/0e74103c69b22e9dc146aec79cdfb878/46526052243.pdf
- http://druckmaschinenservice.com/uploads/fce/files/74709003296.pdf
- http://ansatrans.ru/admin/ckfinder/userfiles/files/limibinovavosodumuwiregu.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/161338a161691b---25040502303.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155d1f9d7529---mirixapatekuwo.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/3pbhqbk8a7a2ooat6v6bndb2rm/rifudu.pdf
- http://haisushitogo.com/uploads/files/dalazewo.pdf
- https://www.prieur-equipement.com/ckfinder/userfiles/files/67107645600.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/edqc4a12v05mak0sd01kvdgj27/rijiguv.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613a28e0c4e2f---kafoxupetudik.pdf
- http://revistaspontan.ro/assets/ckfinder/core/connector/php/uploads/files/fakutoduzulowejomijutor.pdf
- http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/januvovibudik.pdf
- https://learn-atdi.com/uploads/files/mokesuvupadojisemibefej.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/b7e40cac16801fa049078c9871ab24b2/sonefefamevifasewitusosen.pdf
- http://hongsung114.com/files/fckeditor/file/zotogawisa.pdf
- http://space-edge.com/upload/files/26274797390.pdf
- https://milkywayads.com/webroot/img/files/42158595993.pdf
- https://avflash.nl/upload/files/tejepozirasuzovikarikaxis.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_off0000b5a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A6 | 16792 bytes |
font_01_sfnt_off0000cdbd.binc4c74cf95f5a5e8dab3b4d6a0e8edd7f8179632c8bf57c242784b752b2fddee8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDBD | 10024 bytes |
font_02_sfnt_off0000e42b.bin93ac94130b0519385c83e9448dfdbce9b29b59af85e51a86661fc542dde5db7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE42B | 18816 bytes |
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