MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://cructi.ru/uplcv?utm_term=ion+bright+white+powder+lightener+instructions
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160beaf7fea26d---17555224564.pdf
- http://grubstreet.ca/ckfinder/userfiles/files/fowero.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/5g0p5j1i50kopbc31osr9rr5uf/21311208837.pdf
- http://jingchengs.com/jingchengs/ckfinder/files/20210808063035.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/fac5cef5f1b4599d45bd0f53abfd0ed2/xotuwikul.pdf
- http://assushop.com/userfiles/assushop.com/file/pozed.pdf
- http://chongros.com/userData/board/file/34899829018.pdf
- http://leebyunghun.kr/new/upload/board/files/rerigumipebobu.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc83dc7340---gapabadowedafepoma.pdf
- http://sattamatkapatti.com/userfiles/file/17768770982.pdf
- http://ptairsupply.com/userfiles/file/63373017756.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/tolixuxalulemus.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f43d3558bc---70659227849.pdf
- http://knshzj.com/CKEdit/upload/files/gekedekunebegegala.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/v0icirdkus6290uglfbngshq8g/17908672123.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ul6udd383cq6j8g1ij1kmhpbi0/27714171972.pdf
- http://all-vehicle.net/js/upload/files/48893340360.pdf
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/d8b1357129806556885bf7b286057513/worimivaguwotepoz.pdf
- http://aatmicscience.org/asuserfiles/file/31407674265.pdf
- https://banerjeetourspecial.in/ckfinder/userfiles/files/80249890950.pdf
- http://associatedreclaimed.com/userfiles/files/62057143788.pdf
- http://hasici-pristroje-eshop.cz/files/file/76781461694.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_off0000f186.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF186 | 16792 bytes |
font_01_sfnt_off00010998.bin129f827e89745e5d268149d514c65a20dd14da824ef372c602699e10e071b557 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10998 | 18088 bytes |
font_02_sfnt_off000138f9.bin40ccb74151420bdc0cee0310fc69da11a63e432f028a79315c7076f75b26ad1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138F9 | 10908 bytes |
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