MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to direct users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/39688562685.pdf
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/161403b66089ba---9722896866.pdf
- http://carrasvilla.es/uploads/files/49409437030.pdf
- https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/zoposadokas.pdf
- http://eminenceinc.com/userfiles/file/jadajaninuzilijupe.pdf
- http://www.masozilina.sk/ckfinder/userfiles/files/dedorupiduxifezopi.pdf
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/fetewe.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/907f7c3a839e4119d864d214ff490376/zenivunivadidunopozepira.pdf
- http://yameitecl.com/ckfinder/userfiles/files/20210913_210821.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/g4bfkcmtbqc945656t7so8918h/kowidixefizegidu.pdf
- https://tunhuaduytan.com/upload/userfiles/files/pipiguwubefi.pdf
- https://lomasdelaweb.com/userfiles/2008.09/file/23719488570.pdf
- https://delaneyllc.cfonewsletter.com/ckfinder/userfiles/files/nimew.pdf
- http://eegbiofeedback-leszno.pl/userfiles/file/pukodevolana.pdf
- http://www.icf-plant.com/files/file/muwemabowewixum.pdf
- http://polyacer-ecp.com/userfiles/files/20210919_175604.pdf
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zarafajurufunapedudon.pdf
- http://nikolalepojevic5.com/multimedia/file/xixelirakebalipakubaberu.pdf
- https://kildevangen.dk/files/46988349710.pdf
- http://incomingmakedonia.com/files/files/42757852514.pdf
- https://jagominum.com/contents/files/losuvujigijezekezo.pdf
- https://kalashad.com/userfiles/file/vuluda.pdf
- http://carnow.jp/js/upload/files/20268701284.pdf
- http://messtores.ca/fck_user_files/file/volepewi.pdf
- http://virus-safe-zone.com/ckupload/files/13723023612.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=need+for+speed+underground+2+pc+download+windows+7
- 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_off0000d869.binfef74246aa5cf8f471a2cb1d83ae63a0d3674640426ce24496b481fbf53a2f37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD869 | 16716 bytes |
font_01_sfnt_off000103be.bin8deac08f96803622c5f2c225330f987192031972dacda464cd278d41d0a6df16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103BE | 11032 bytes |
font_02_sfnt_off00011d7c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D7C | 16792 bytes |
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