MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic firings and numerous extracted URLs, including one pointing to a link farm on disposable hosting, strongly indicate a phishing or malware distribution attempt. The ClamAV detection and ML classifier further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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=translate+from+binary+code PDF link annotation
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/5f768a36bb3755f29a90e8e6a800c9db/jidoluxubajimixiri.pdfIn PDF document text
- http://faithleader.org/js/ckfinder/userfiles/files/mafepajojalowag.pdfIn PDF document text
- http://electronicaindex.nl/images/uploads/87585434667.pdfIn PDF document text
- http://kazuma.ru/ckfinder/userfiles/files/xufit.pdfIn PDF document text
- http://massarentearchitettura.com/userfiles/files/23654754128.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16135b3e5d2fd8---feralininomavukizi.pdfIn PDF document text
- http://twtime.com/uploads/files/202109011911147333.pdfIn PDF document text
- http://adhunikjewellers.com/ckfinder/userfiles/files/kelufuzujigedaminarano.pdfIn PDF document text
- https://www.htlexpress.com/ckfinder/userfiles/files/19319172791.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/sivufalimegi.pdfIn PDF document text
- http://livingkaneohe.com/userimages/76736158619.pdfIn PDF document text
- https://akamercedes.com/images/uploads/files/zelevipopuraxuduzelobube.pdfIn PDF document text
- http://dentistturkey.com/image/files/45607946228.pdfIn PDF document text
- http://gat-asset.com/CKEdit/upload/files/20738052284.pdfIn PDF document text
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94038144161.pdfIn PDF document text
- http://hart-metale.pl/gimnazjum/userfiles/file/tamixesinozakof.pdfIn PDF document text
- https://nezrenweb.com/calisma2/files/uploads/gifipo.pdfIn PDF document text
- http://gysanya.com/upload/file/210901232508233827cv99a8vmk8np.pdfIn PDF document text
- https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/52098252569.pdfIn PDF document text
- https://szpital-sulecin.pl/images/fckfiles/file/30822930664.pdfIn PDF document text
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/5270055241.pdfIn PDF document text
- https://blugarden.eu/file/53636364930.pdfIn PDF document text
- http://baove247.org/upload/files/91261060459.pdfIn PDF document text
- http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89914097164.pdfIn PDF document text
- https://luckyfood.itweald.com/uploads/files/6133216c4f266.pdfIn PDF document text
- http://www.udelimpa.es/ckfinder/userfiles/files/kifemovuzinobabemaxezote.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_off0000d5af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5AF | 10856 bytes |
SHA-256: 1940cb1368572c66ec8a169c062f12edd917e9f24cd338a27eecd23db35f1f20 |
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font_01_sfnt_off0000eec4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC4 | 19588 bytes |
SHA-256: 4bd3314c05c31e5168a891b13dbc13cbcb7bf4dc70f7a3e1e35a431c67ae14c6 |
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font_02_sfnt_off000122d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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