MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9844
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://synerhu.ru/uplcv?utm_term=objects+that+start+with+e PDF link annotation
- http://artediapharma.com/upload/files/60194631440.pdfIn PDF document text
- http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/werafimutezaxebevi.pdfIn PDF document text
- https://millvalley.com/wysiwygfiles/file/kufiganakobunuxaboki.pdfIn PDF document text
- https://chineseclothingonline.com/File/85407791589.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aac575f1ab---68395024952.pdfIn PDF document text
- http://gimnazjum-krasiczyn.pl/img/userfiles/file/tusaranesobuvizuve.pdfIn PDF document text
- https://mvmdigital.gr/files/files/paxujar.pdfIn PDF document text
- https://shatalarab-llc.net/userfiles/files/nibaduwidajevig.pdfIn PDF document text
- http://pattarasawat.com/ckfinder/userfiles/files/pemalemawiketiremufep.pdfIn PDF document text
- http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/tolowamop.pdfIn PDF document text
- http://4els.ru/uploads/images/files/pirudovuvosiwawujeme.pdfIn PDF document text
- https://resortweeks.pro/userfiles/file/raxin.pdfIn PDF document text
- https://akemi.ro/hirek/file/72563068410.pdfIn PDF document text
- http://efuegypt.org/userfiles/file/ninatumotasovubosoluk.pdfIn PDF document text
- http://systempro.kr/userData/board/file/70966521052.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/ruwajetajiba.pdfIn PDF document text
- https://halkapsikoloji.net/userfiles/file/37408443656.pdfIn PDF document text
- http://eurekaelearning.com/upload/news/file/janakar.pdfIn PDF document text
- http://palaciodelosnavas.com/userfiles/file/33629768293.pdfIn PDF document text
- https://mekongtransport.com/upload/userfiles/files/70599417870.pdfIn PDF document text
- http://theponghop.com/upload/files/43598299733.pdfIn PDF document text
- http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/57547472094.pdfIn PDF document text
- http://ckm-machinery.com/userfiles/files/zobesupujifaxowugi.pdfIn PDF document text
- http://renknh.com/ckupload/files/kekaxe.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138e9f11a5ec---20898789271.pdfIn PDF document text
- https://greenways.at/userfiles/file/malutaxafu.pdfIn PDF document text
- http://www.bargiel.com.pl/ckfinder/userfiles/files/pumizetividixigi.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_off0000d183.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD183 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e99a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE99A | 10440 bytes |
SHA-256: 4c86a18f973de40b8d0e1c390d844683bf4d9addb474a5579e45694e86cd8615 |
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font_02_sfnt_off0001017f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1017F | 16696 bytes |
SHA-256: 4044a070eab41fc2d354c419b6eac4df51ee6134a5f6336c5f246b56c7a511e8 |
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