MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing pages. The presence of multiple external URIs and link farm heuristics strongly indicates a phishing or SEO poisoning attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://oniceh.ru/uplcv?utm_term=gta+4+lcpdfr+how+to+change+controls PDF link annotation
- http://hzjksj.com/images/upload/File/jixat.pdfIn PDF document text
- http://travelci.ru/ckfinder/userfiles/files/45509239951.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/86428288776.pdfIn PDF document text
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/8jgf73apr462bt97cmqlvgsjno/67482728804.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/9ccaac98ce89fac28a86ce094447187a/82307790615.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/9j32hvo9pe2ot06kcqei4fr00a/pugoxetivalabisikunowe.pdfIn PDF document text
- http://przychodnia-felinskiego.pl/uploads/editor/file/vebozavabagifera.pdfIn PDF document text
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/99d2b022dd9fc5c0a130bb5ac85ab95b/jubuferatewixofujeru.pdfIn PDF document text
- https://educationindiajournal.org/ckfinder/userfiles/files/werepigozifinelenu.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16089e693c2f12---vadaloto.pdfIn PDF document text
- http://kovove-ploty-brany-zabradli.cz/UserFiles/File/fubezedagugomilikaxim.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/198idig2d2ruocgi5u8e2sj7jf/28077584748.pdfIn PDF document text
- http://posicert.com/upload_fck/file/2021-7-27/20210727160003991996.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/86954951025.pdfIn PDF document text
- https://airbays.com/userfiles/file/34371961834.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/kegjm05jggqsgr6pcb0dmlefd1/31780591681.pdfIn PDF document text
- http://dentalcenterstudio.it/userfiles/files/72083680726.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/708b433b0c89ffb7a71e57e19af0461d/notuwufedow.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e0faba6b53d---2281932187.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/88480090889.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d71d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD71D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF2F | 19144 bytes |
SHA-256: 8b6a1032f5a5b4d908995a19f766eec1d0a3d22a366960e4b867cb4e5f4c94c6 |
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font_02_sfnt_off00012023.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12023 | 11008 bytes |
SHA-256: 0256b3342199dcb3f59ea6b89fc623027d1078d090cc8b88a00b7a0b7c8b1a41 |
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