MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised WordPress sites, likely serving as a lure to redirect users to malicious or phishing content. The presence of numerous URLs, many pointing to compromised CMS uploads, supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/mhku5trpckvcuof28smfhacam1/pubevubejinerazubenitita.pdf
- http://nuraski.pl/wsg/userfiles/25816388264.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/95374690b952caf065f7c85b9660ee36/63579538575.pdf
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/75134d83071484dd796036db6848b5b2/76047213446.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/888b2dd78c1c077ab592be487da4e467/sufovixamazopirofisurowo.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/f132969887d048796d699c4c62f077b3/4726091819.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160913793d759f---73696219075.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c0d876132---kexutonadunuvivumiwunipe.pdf
- http://www.look4job.gr/images/_user_na/file/17393492431.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160864c9f60c28---zazorawijegawusuzojenatel.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/e19fd1128e579d1abbeeeb97ea51ef31/fefomiwejofa.pdf
- http://iltorg.ru/upload/file/babisuvagidigeva.pdf
- http://omonetach.pl/foto/ilustracje/file/damadukunorusipakuwusuti.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/057e30ca1e900fc18ba85c4b4ef6b039/bujiduzufotemixem.pdf
- https://alkalacarservice.com/public_html/userfiles/file/78304507902.pdf
- http://dxczx.com/ckfinder/userfiles/files/20210603_024253.pdf
- http://lapawan15.com/shop/fck_file/file/dofaxadekexezidalud.pdf
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16090793b32fbc---mujadiwuvafajofapogiw.pdf
- http://www.anieliasfx.com/uploads/textareas/file/koparobinetatiku.pdf
- https://alkalacarservice.com/public_html/userfiles/file/44769122697.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/mrjd8gkg27u7r75uk17ik04hgh/30662024534.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/8bcc254e5eccb600b730772fb04e553c/85204327327.pdf
- http://speaklifeiamgreatness.com/files/files/37742875772.pdf
- http://omg.su/upload/File/dejuzix.pdf
- https://parklanehotel.asia/userfiles/file/dukuliv.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=network+reference+model
- 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_off0000f5a3.bina936b32c1667f284ad1cd67b8abf67fcb566223e980de55985b5e5a67fd3a86e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A3 | 17556 bytes |
font_01_sfnt_off000123b6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123B6 | 16792 bytes |
font_02_sfnt_off00013bcd.bin10b059ea5271e23934d31d6f2e3456f463f3b6c22ab01090ec56d0e0ac2230fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BCD | 10368 bytes |
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