MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to multiple compromised WordPress sites, indicating a phishing or redirection attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded JavaScript likely serves to further obfuscate the malicious payload or initiate a download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
Heuristics 7
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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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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://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/3b729731ec4251084da4d3dd5aae09a4/55979174130.pdf
- https://fotokeramika.bg/userfiles/file/17304775420.pdf
- http://gancza.pl/userfiles/file/lolujogaguv.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a47965909a0---novaja.pdf
- https://deltagroup.bg/uploads/file/radisexis.pdf
- https://isleo.com/i_photos/file/59771221191.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd1eb6c975---67288132038.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-22/20210522153242142097.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/ohe4ga3o00trh6a597duvolei3/498691111.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/q81mpvdtaut2il5kdero3u3ei3/97512940585.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b77c7d1c815---48748951196.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/80b2b7ea403973a686ff9428b8dd3db4/55398064126.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16076fef92792a---kimewurokibimejifewuz.pdf
- http://takemehometomatoes.com/ckfinder/userfiles/files/xutuxusofefapi.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/975992c34d86547938d92af7f6097e16/13943167558.pdf
- http://istrouma1971.com/clients/9/9b/9b88b062b8d6af44b28e209fcb06d7d5/File/37161619165.pdf
- http://kutscher-customs.de/gfx/userfiles/files/88968080468.pdf
- http://emeat.ru/var/files/lufemolebalogikek.pdf
- http://euredit-editions.com/userfiles/file/48012364702.pdf
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/jibabuwen.pdf
- https://cafesca.info/ckfinder/userfiles/files/73483879265.pdf
- http://jiehuist.com/userfiles/files/83221755837.pdf
- http://praconsulgroup.ru/pict/file/najiwoj.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a30a00ad39.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=best+place+to+stay+in+fiji
- 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_off0001177f.binedcbb6700224ffa42627ff8a5db07678ff1adca948c2be7b2ccc4e88d89e4fe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1177F | 17088 bytes |
font_01_sfnt_off000143cf.bin45de1bdf6d4862bd1f04241dff3656eb9082f689feaf62594c765aaf23257c36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143CF | 10672 bytes |
font_02_sfnt_off00015c6b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C6B | 16792 bytes |
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