MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous unknown-reputation URLs suggest a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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JavaScript action low 1 related finding PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://synerhu.ru/uplcv?utm_term=grammar+book+for+class+6+pdf PDF link annotation
- http://clubmaniacr.com/campannas/file/37220864719.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/7c016221438ae9829d0b978b8de746a5/16793687793.pdfIn PDF document text
- http://coinproject.com/userfiles/image/file/48157779062.pdfIn PDF document text
- http://rabotatver.ru/userfiles/admin/29636645179.pdfIn PDF document text
- http://bugaboo-buffalo.eu/UserFiles/File/jebexu.pdfIn PDF document text
- http://robwalker.net/fckupload/file/744114892.pdfIn PDF document text
- http://klubbelgickychobrov.sk/editor_uploads/files/mixitagezopovot.pdfIn PDF document text
- https://emartdeko.pl/galeria/file/fidobugimetutu.pdfIn PDF document text
- https://paramourpourbebe.bettygagne.ca/userfiles/file/jufexexuku.pdfIn PDF document text
- https://satesayap.com/contents/files/tupexod.pdfIn PDF document text
- http://aluminial.pnh.pt/js/ckfinder/userfiles/files/74250323506.pdfIn PDF document text
- http://mybed.tw/uploads/files/202109152305423975.pdfIn PDF document text
- https://pleasanton.com/wysiwygfiles/file/10785177636.pdfIn PDF document text
- http://leinerpakgelatine.com/survey/userfiles/files/92284533514.pdfIn PDF document text
- http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/17244801022.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/76036075796.pdfIn PDF document text
- http://tw-tms.com/uploadpic/xw/files/pomefinobufitosukamativ.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/zexibikowoza.pdfIn PDF document text
- http://csc010.com/userfiles/file/20210910130703_irgezo.pdfIn PDF document text
- http://cellesekorea.com/ckupload/files/9143831967.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612eab4867397---38428616256.pdfIn PDF document text
- http://www.mostenpo.jp/userfiles/files/xibevosivajamevumaxupegow.pdfIn PDF document text
- http://naphotelbangkok.com/userfiles/files/10521574765.pdfIn PDF document text
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/24734522841.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_off0000b268.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB268 | 18036 bytes |
SHA-256: 79dbaacb8cb97cfa4ff290bfa3d2ef7d890d7578903159dd1d268399adc8bdb0 |
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font_01_sfnt_off0000e0e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f8f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8F7 | 10796 bytes |
SHA-256: 60fc41033421d454c35aa35f5e25df8313a854ea8995912e089ce30e16974cbd |
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