MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised websites. The embedded URLs and the PDF's structure suggest an attempt to distribute malicious content or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://zhuoer.ltd/userfiles/file/mofekug.pdf
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/aeb3e4583825540e48485a2a04d8a946/dusabemitizanixojagu.pdf
- http://aktifimmo.lu/userfiles/files/35670479432.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/1745d9b9352b721529648dcf694964c7/borenevefipe.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e16d9db7733---vivujaselolivuzozazagez.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/f76cb8c16e83e84e60f32140f97e5524/2601928705.pdf
- http://fitviewer.info/files/file/nozunuromixariviletumev.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b024369b3351a71cfc52b12a0c5bbff8/jedizedaxeribefoworu.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ad1356a4f---semekikin.pdf
- https://vnsteeldetailing.com/UserFiles/files/bukikofokesojorigedixavef.pdf
- https://burlingame.com/wysiwygfiles/file/xiwikiweburi.pdf
- http://vo23.ru/upload/file/bimejegiw.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608203ff4871f---88903650051.pdf
- http://spalovnachemolak.sk/userfiles/file/lurorinezix.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c307b500ecc---7989330436.pdf
- https://telewebmarketing.com/FCKeditor/file/85615525050.pdf
- http://ithaca1961.com/clients/875375/File/jasirebidareretofugote.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909c0bc39f8---84066000313.pdf
- https://www.tunnel.de/files/uploaded/file/68234848797.pdf
- http://omni-links.com/images/blog//file/29784133869.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16086c4a982d26---41477278971.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/t2e75inai8b19kare4va43sjnh/dagovujufapuxisezuwobod.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c639875465e---xixigeridisotomidob.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=kroger+mashed+cauliflower+nutrition
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/b95d78f1b56ed26eeaf9ded2f223620a/78642232331.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_off0000f4ad.bin64ff3843e715d5ad05a05881935ac4a4149ee6e6a64ffb6dd0f1c2d28fc7424e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4AD | 18232 bytes |
font_01_sfnt_off000124d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124D0 | 16792 bytes |
font_02_sfnt_off00013ce7.bin01f3200563b5d8e3d928be174e94756dd47ee407ed2d1c17c43b168bf02b3a49 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CE7 | 11100 bytes |
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