MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing embedded JavaScript and a large number of external links. Several heuristics indicate that this PDF is part of a link farm, with many links pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://medvor.ru/uplcv?utm_term=goodbye+letter+to+ex+parents
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/tutesawo.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1bdd18b54---bemurevuza.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a694af6c5e9---fuwizuzowosivuram.pdf
- http://zjqzzx.com/uploadfile/file/2021062304034373499.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608706bcb4e4a---fupebaxudowapisapob.pdf
- https://www.tanyadantus.com/wp-content/plugins/super-forms/uploads/php/files/72674f60ff745e0fed489f3d799ceae9/74197488417.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/tnrveiflv13j4aohn73vncd264/48102848825.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607497035b7a6---pufejudunuvewolesazumole.pdf
- https://ihotel2b.com/upfiles/editor/files/tiritubufevarojalojikon.pdf
- http://tnslib.su/userfiles/files/malobatejopovifavej.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/e864993544a69327c748627778138bde/57776317806.pdf
- http://ural-resyrs.ru/data/file/64826265250.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/23f123e2715fabd2ece4c08d6bd00c48/difukurilol.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/bc174a2a5f6abc29032318b9ade6853c/48139009834.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160877700c431e---darobuzuvugixuragifisu.pdf
- http://indovinandoilmondo.it/themes/userfiles//files/25932496507.pdf
- https://guapa2.com/admin/fck/file/fixixaxiwiwaz.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082aa815fd42---47835906485.pdf
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd200da0a2---8757543197.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d65d34d2a1---zebonikaf.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099f22e1c2ea---97500117950.pdf
- http://bensonlandscape.com/editorData/file/47584907187.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_off0000f51e.bin965f7e78c185bf637ade406278feef79b05cc96975896a415bc10df067c11159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF51E | 10688 bytes |
font_01_sfnt_off00010d9c.bind99200575329e3caa20919bc544af485fa6882a3aaef08ff69e81fbeab342c8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D9C | 17196 bytes |
font_02_sfnt_off00013a60.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A60 | 16792 bytes |
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