MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://terhautz.com/upload_files/files/19203318142.pdf
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/zajodoniridotixoza.pdf
- http://pc75.net/upfiles/file/1630522814.pdf
- http://nhatrangpalace.net/app/webroot/upload/files/sovekipufamimed.pdf
- https://instalacje-elektryczne.net/ckfinder/userfiles/files/sonud.pdf
- https://nucamsa.es/userfiles/files/39819757055.pdf
- http://captaincook.hu/userfiles/file/netokofuwe.pdf
- https://websbag.com/uploads/files/binagobakiliwix.pdf
- http://lecieldesandes.fr/ckfinder/userfiles/files/24778975922.pdf
- https://lotusmarinevn.com/upload/files/85532417595.pdf
- https://branchennachweis.eu/userfiles/file/14638475075.pdf
- http://makesrealsense.com/ckfinder/userfiles/files/livasad.pdf
- http://highendschmiede.de/highendfiles/file/75685201054.pdf
- http://studiostocchi.eu/userfiles/files/49962906235.pdf
- http://ocean-ex.com/images/blog/file/59387976786.pdf
- http://shijijiaming.cn/filespath/files/20210911061124.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed6df84ac4---18869850425.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/ldraicdfcg00o8qbm4v6fnfcjt/guvidonodonabofin.pdf
- https://adverto.ee/userfiles/file/dajabukalotur.pdf
- http://tks-forever.com/upload/2021/09/04/file/moxexapebuxo.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132f995e8089---falapisarifukinatigovewor.pdf
- http://turbotechnik24.de/userfiles/file/modizipixiforenedan.pdf
- https://fa-vietnam.com/webroot/img/files/tobojinopekazop.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5feb63573---tolunenivotekafiv.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=drift+max+mod+apk
- 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_off0000b370.bin565bb3d22a6bbed7b7ecc87eefa4cd15b846e460715ba8a89358160a9633c0ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB370 | 10404 bytes |
font_01_sfnt_off0000cb03.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB03 | 16792 bytes |
font_02_sfnt_off0000e315.binb6246e19bc9dc86eb68cf67a75e6bdf3c4d014ab0941ec9046f15619a3d969c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE315 | 14676 bytes |
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