MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF containing embedded JavaScript and a large number of external URIs, many of which are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://synerhu.ru/uplcv?utm_term=android+i%C3%A7in+%C3%B6nemli+uygulamalar PDF link annotation
- http://melabo.com/upload/files/tubome.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/161444266a8c78.pdfIn PDF document text
- http://doctour.hu/uploads/ckfinder/userfiles/files/23042495755.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202109080701377102.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/razinavumosewalikumugoj.pdfIn PDF document text
- http://smolensk-bakaleya.ru/userfiles/file/tidijulutojokalimenebaxuf.pdfIn PDF document text
- https://snapstudios.ca/userfiles/file/17350663913.pdfIn PDF document text
- http://technestudio.eu/userfiles/files/vinawibezut.pdfIn PDF document text
- https://vmgeducationtrust.org/home/vmgedu/public_html/public/userfiles/file/fitolikesefum.pdfIn PDF document text
- http://citygclub.com/ckupload/files/kofesumotubenalovawej.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/69789040927.pdfIn PDF document text
- http://ccshecea.org/upload/files/38793074724.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/39241112157.pdfIn PDF document text
- http://dolphinkorea.com/files/files/jilipipexugopab.pdfIn PDF document text
- http://design-klasse.de/ckfinder/userfiles/files/pavegizuxogise.pdfIn PDF document text
- https://congnghieptauthuyvietnam.vn/upload/files/43097501399.pdfIn PDF document text
- http://albarossa.jp/js/upload/files/tevosafobekejadumutewe.pdfIn PDF document text
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/vofomadizojefu.pdfIn PDF document text
- http://autoset66.ru/admin/ckfinder/userfiles/files/gepakananenuf.pdfIn PDF document text
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ce31b6e82---wiwakunamogi.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/viketipodurasadepi.pdfIn PDF document text
- http://say-international.eu/userfiles/file/48850518291.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_off0000d951.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD951 | 18960 bytes |
SHA-256: 279f3e3cf3ef65809227197641375a97dc9de654f1fd2b466ff2557372c18d62 |
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font_01_sfnt_off00010780.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10780 | 10932 bytes |
SHA-256: 41e9bea00098704a4813e1c0c3c483750473997c74d5f0d590d15148060dbc87 |
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font_02_sfnt_off00012037.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12037 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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