MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, indicating it is designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a phishing or scam campaign leveraging a large number of disposable domains. The ML classifier and ClamAV detection confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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=mirror+android+to+pc+app PDF link annotation
- http://usaoxin.com/userfiles/2021-9/file/godirepokezarupelamowe.pdfIn PDF document text
- https://siangyun.com/upfiles/editor/files/45880341884.pdfIn PDF document text
- https://santehsevast.ru/userfiles/files/29496412808.pdfIn PDF document text
- http://www.romanschatztruhe.de/img/files/sunotubab.pdfIn PDF document text
- http://bularz-auto.pl/images/userfiles/file/dobajokasekimipilojuzo.pdfIn PDF document text
- http://mitchelllawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/puwofagatukuj.pdfIn PDF document text
- https://aprilboya.com/userfiles/file/47697890051.pdfIn PDF document text
- https://alhasooncorp.com/Files/files/zezakosetovosiwefapu.pdfIn PDF document text
- http://www.ks-klinika.ru/ckfinder/userfiles/files/suximiwel.pdfIn PDF document text
- http://lindseyderence.com/userfiles/files/towamutotoxezuligu.pdfIn PDF document text
- http://skoleniridicu-online.eu/ckfinder/userfiles/files/77294761677.pdfIn PDF document text
- http://tuning-zone.eu/userfiles/file/betifa.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613052677fef9---9948305855.pdfIn PDF document text
- http://avandcie-energy.fr/ckfinder/userfiles/files/7387228382.pdfIn PDF document text
- http://tantos.jp/js/upload/files/kekebibur.pdfIn PDF document text
- http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/23250421855.pdfIn PDF document text
- https://solturism.ro/images/file/59591944299.pdfIn PDF document text
- http://spokoino.ru/i/upload/files/23453610774.pdfIn PDF document text
- http://icloudcleaners.com/uploads/account/autoresponderfiles/67118948552.pdfIn PDF document text
- http://patanjali.zohukum.com/ckfinder/userfiles/files/nazudemesifim.pdfIn PDF document text
- http://domingo.hu/ckfinder/userfiles/files/resofigaf.pdfIn PDF document text
- https://temahr.hr/files/86650040391.pdfIn PDF document text
- http://adgroup.co/userfiles/file/54730689859.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/29809526150.pdfIn PDF document text
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/4tjouurcsv724jmg4nqn6evcar/31264567360.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_off0000ec44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC44 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010456.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10456 | 17332 bytes |
SHA-256: 747b7cd5645805971730ee138eecfc3c4958899c0c0f3f68fa0e491575074a8e |
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font_02_sfnt_off00013150.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13150 | 10156 bytes |
SHA-256: f6b9521866a61754ff10682d5fb29c492d68e7e681e8fc84fd36ec04fbc7174e |
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