MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of a link farm and compromised CMS upload URLs points to an attempt to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://pozitron-s.ru/userfiles/file/55618408482.pdf
- http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/74621189625.pdf
- http://asianaccounting.com/admin/fckeditor/userfiles/file/zulep.pdf
- https://fanaf.comarticle_ressources/file/vezafogobevekimajofum.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084df86b8380---15951681522.pdf
- https://solidpractise.com/files/userfiles/file/dusadedis.pdf
- http://project-lovcen.me/userfiles/file/mogamab.pdf
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/aa5cc8c7ca74cd33f3fed0661101f340/rifabuzakaro.pdf
- http://anandtouristcorporation.com/uploads/8444664820.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/ch8o775c2g2j7cmg7fh706c5n6/widugipipabi.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160960d370931d---rixoj.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/32d8ff672fb4aaaac9c1816997132479/39566914499.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd32f87cc9---vatenuxa.pdf
- http://anhuifan.com/upload_fck/file/2021-6-21/20210621215207700153.pdf
- http://chalappuram.com/userfiles/file/kutijegixelenegutosenufa.pdf
- https://jaiminsales.com/ckfinder/userfiles/files/kefus.pdf
- http://tuzvedo.hu/elemek/file/22605784110.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aac864adb97---zagujenusizafaliku.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/1814efcb8cefb8d486be2d025bbe5a91/87389935982.pdf
- https://kisikana.hr/userfiles/file/lesaxupugidepupan.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/828135030f29239c98407602d3b06c7d/66438028725.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609252ae5195d---89101620278.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc0b494705---69551136969.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acc2495fc9---87003374609.pdf
- http://nexxosrealty.com/userfiles/files/fewid.pdf
- http://www.sport-konyv.hu/userfiles/file/verejuwaguzifanisubo.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d395160f9---pizobofuj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=cost+and+value+management+in+projects+pdf
- 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_off0000fb1e.bin269b2f64a31465799149f73e6c3820216bee09e0db20f894a8316823f9817edb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB1E | 11288 bytes |
font_01_sfnt_off0001156c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1156C | 16792 bytes |
font_02_sfnt_off00012d7e.binb78dd445ab5d16c56373e263b888885b8fbba81b404e7985bf1c510eb0e16a37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D7E | 17696 bytes |
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