MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier strongly indicated maliciousness, and numerous heuristics identified the PDF as a link farm on disposable hosting. The embedded URLs, such as 'https://crysiq.ru/uplcv?utm_term=how+to+use+your+phone+as+a+speaker', suggest a phishing or content-luring scheme. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 4
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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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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://crysiq.ru/uplcv?utm_term=how+to+use+your+phone+as+a+speaker PDF link annotation
- http://sushigonewildtogo.com/uploads/files/jujepinumibopigofukob.pdfIn PDF document text
- http://www.sas.edu.mn/ckfinder/userfiles/files/73299374709.pdfIn PDF document text
- http://autoscuolepintozzi.it/userfiles/files/velizej.pdfIn PDF document text
- http://dtpokebar.com/uploads/files/15891341257.pdfIn PDF document text
- http://7sate.com/filespath/files/20210906044823.pdfIn PDF document text
- https://cdmsig.com/ckfinder/userfiles/files/52534569972.pdfIn PDF document text
- https://vietcuongcorp.com/uploads/news/files/gufeginukinukozojanul.pdfIn PDF document text
- http://hanyuchina.com/upload/files/zefogusilumovo.pdfIn PDF document text
- http://www.papelerialapiceros.es/ckfinder/userfiles/files/litubidujetuluxovot.pdfIn PDF document text
- https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/73129059535.pdfIn PDF document text
- http://pnktools-th.org/ckfinder/userfiles/files/boresosepukukesum.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/39278297081.pdfIn PDF document text
- https://takipbizde.com/calisma2/files/uploads/1520202119.pdfIn PDF document text
- http://boxerdapolenta.com/cmsimple/images/file/42482123213.pdfIn PDF document text
- https://giaphutelecom.com/tctt/sites/aaa/file/manexenijakulusatisebap.pdfIn PDF document text
- http://cdkuys.handysociality.com/upload/files/xakafitivesikovobu.pdfIn PDF document text
- http://mid-europe-ex.com/images/blog/file/bisigokimitazusuwegigega.pdfIn PDF document text
- http://proxima-design.cz/files/file/kitazodi.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16147787476a92---jinuwisufaxuza.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328264052d3---13813048062.pdfIn PDF document text
- http://felixefontesadvogados.com.br/ckfinder/userfiles/files/tixojapaxekanerivon.pdfIn PDF document text
- http://eminenceinc.com/userfiles/file/14994786409.pdfIn PDF document text
- http://rococosofa.com/files/files/92431656884.pdfIn PDF document text
- https://newcar-rental.com/uploads/files/202109020721103729.pdfIn PDF document text
- http://3colorjazz.com/fckeditor/userfiles/image/9526600888.pdfIn PDF document text
- https://ichibaninfotech.com/ckfinder/userfiles/files/5554105792.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_off0000e593.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE593 | 17344 bytes |
SHA-256: 84508eb2042045921a8f6f4d0a887ccf0c31f18c54b322805f83b5caf1ed5d7a |
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font_01_sfnt_off0001127f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1127F | 10596 bytes |
SHA-256: 57a84870af348ae5672e8551b93e909eef2caaf10e05ea33613bf512504070e6 |
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font_02_sfnt_off00012ac0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AC0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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