MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains a link farm pointing to compromised WordPress upload storage, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://longarmacademy.net/fckeditor/userfiles/file/75943020889.pdf
- http://image.dlib.vn/libedu/news/bvu/20210924/file/57643544453.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c036cd362b---laxugimezug.pdf
- http://luisacortesearchitetto.it/userfiles/files/47599726136.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/a63n2dhhsl87oj3mnos6i5kea4/satubagixevuvapufawuto.pdf
- http://blueview.nl/app/webroot/files/userfiles/files/pilizomepebiwe.pdf
- https://preciseenergygroup.com/media/vovisoselutanatokixu.pdf
- http://ros.by/ckfinder/userfiles/files/91761625242.pdf
- https://seger.cz/userfiles/file/tivirimazasakedilipul.pdf
- http://quantri.thaisonpalacehotel.com/upload/files/zojibameseg.pdf
- https://dsverano.com/UserFiles/File/voxoxilimafafuzapirek.pdf
- http://spalovnachemolak.sk/userfiles/file/8777436666.pdf
- http://yugreat.com/filespath/files/20210918221450.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/fd1dea33b48d2a0c2bc88bc46d6cf00d/99635332245.pdf
- http://romengo.com/ckfinder/userfiles/files/87921790124.pdf
- http://only-svet.ru/upload/files/52134267021.pdf
- https://yocarbroker.com/upload/ckfinder/files/tapapaxudezelodoguz.pdf
- http://theheavent.com/userfiles/files/7033066838.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/11277ffc11dc3bd5087b7cdb90431f46/fuxodutinifugeliki.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/11929058034.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16145c3826b69a---15038137007.pdf
- http://plncse.hu/php_data/file/sujiwopofa.pdf
- http://peoplefoster.com/pliki/wegafajoxanibo.pdf
- https://theipbuzz.com/images/file/67235177148.pdf
- https://dichvuhappyhouse.com/upload/files/wazodatorilige.pdf
- http://snieznik.pl/userfiles/file/forarunavulomuligele.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=view+insta+profile+picture+full+size
- 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_off0000b5ff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5FF | 16792 bytes |
font_01_sfnt_off0000ce16.bin76516d3623a774742ce01dab9c3b858b369a221994536c4f7215ee2068329fe9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE16 | 10688 bytes |
font_02_sfnt_off0000e6de.bin563fe7b3f644b7d7d280096c898a11d81750eef7544ed5e02914cd1e34117d74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6DE | 15984 bytes |
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