MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The embedded JavaScript likely facilitates the redirection to these malicious sites, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://philabc.ru/uplcv?utm_term=small+sores+in+mouth
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e04a7314bc6---kunozokibikuvudilaj.pdf
- http://kyanite.tv/userfiles/file/winedukor.pdf
- http://geodez.com/pliki/file/vamipidateka.pdf
- http://www.gabrielamaciel.net/images/content/file/mugavulerixifenuvuvagaw.pdf
- http://woods-china.cn/ci2/userfiles/files/20210530170532.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/sdmud55sohpaq9a6qg1hehj2g0/jogibenutazipexeremone.pdf
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/e9ba9a6564460b726e1ba6c719caa3a8/34519312621.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160dfd158d10b0---timololakijevevosugojidiw.pdf
- http://biotop-zamosc.pl/userfiles/file/lajafune.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/c9e57252f93ac408bbc84de843fb5dbf/besumexifit.pdf
- https://arendic.cl/files/85543801856.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/d5d10311581a2d7e60131e4053693b7b/26929530655.pdf
- http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/lafotosapajekon.pdf
- http://mg001.cn/upload_fck/file/2021-7-25/20210725035859146197.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/3190ca4c13109cf85f3724d6e81cea47/bikifugunadotarirefopop.pdf
- http://drapa-technika.cz/UserFiles/File/24423614990.pdf
- https://holocaustresearch.pl/nowy/photo/file/82542365102.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072b1d2e5270---tusavavivifizitonev.pdf
- http://oreade-breche.fr/userfiles/file/bowomizalilarid.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/6f0eee23883c5d584c18ffde3409a078/29489803932.pdf
- http://maxidmum.com/images/upload/fck/file/30689626554.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/b38f19d1967af81c738e5bde36fd2d30/26033212029.pdf
- http://www.armstrongre.com/files/files/geravofovasadizopos.pdf
- http://ampletrekking.com/userfiles/file/87648688653.pdf
- https://imahima.xyz/js/ckfinder/userfiles/files/89812234949.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_off0000dcb6.bin8e4c343c76a25d19ce46289dba7051d723cc46b43e9b4547cdce9e334eebb565 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCB6 | 18124 bytes |
font_01_sfnt_off00010bc3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC3 | 16792 bytes |
font_02_sfnt_off000123da.bin39070178258b85013a5bb00e95d53ec4f64333b55b125d3339d388f79effa865 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123DA | 10548 bytes |
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