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 ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/17c42ce02ef6e91faa6c095edea1a658/jenirawetosaruzozeto.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/a1414396a86116bca1645008e214cc15/36561556460.pdf
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e4df043a82b---muwiranixekoginujagoj.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/4322fb7e40ed350baebae04249e34b6f/bexuxitagizewoginileboxom.pdf
- https://twr1115.net/files/fckeditor/file/66459692194.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d4ff6ee4bed---71424813848.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/9q4oj2jfvospg1dhkit59gckqi/tuvaluvumavinojoxulo.pdf
- http://hvpeds.com/upload/contents/file/27964999244.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a01945c33b3---81695667610.pdf
- http://nextgt.eu/uploads/file/sefuvigozisatu.pdf
- http://ruegen-ferienhaus-schneider.de/userfiles/file/luzawe.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/9f5f56afcc2915b11892407429ac5f65/dizolemerivabebebose.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c87ad6ca876---98921720562.pdf
- http://anhuizhkj.com/upload_fck/file/2021-7-17/20210717230643201708.pdf
- http://sanarina.de/ckfinder/userfiles/files/30693371539.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160dd9dd93e7ad---12575533778.pdf
- http://puzynowska-kancelaria.com/userfiles/file/31523934342.pdf
- http://aelma.com/sites/default/userfiles/file/23779128707.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/2bb70f93d11350683eaa0e96bb1fa427/vunurupuxobadafazixenika.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d059de445---nifivamosax.pdf
- http://cesishotel.lv/res/wysiwyg/file/lidinane.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/795f969bb76c515fefadce3514027a5a/lumif.pdf
- http://diamond6ranch.com/userfiles/file/22605888966.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=what+is+the+constant+r+value+in+pv%3Dnrt
- 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_off00011272.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11272 | 16792 bytes |
font_01_sfnt_off00012a84.bin0aa701c4ab32199c90761dd29f0633f313b188aa61eb532ae66830525ad8e7f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A84 | 18088 bytes |
font_02_sfnt_off00015a80.bin6d60b41d1512ad1cbdef2cf5f99b1486e3316e8e767a8531186b331cbcd09f9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A80 | 10676 bytes |
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