MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, including one pointing to 'coretry.ru', suggesting it's used to redirect users to potentially harmful content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a link farm on disposable hosting, a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of external links and the overall detection profile strongly suggest a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 5
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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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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://coretry.ru/uplcv?utm_term=the+selection+series+pdf PDF link annotation
- http://career-id.org/ckfinder/userfiles/files/nokavevufikajivurenazamot.pdfIn PDF document text
- https://osiindia.org/ckfinder/userfiles/files/kokofib.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/55351605571.pdfIn PDF document text
- http://gatewayhotelbangkok.com/upfile_hotel/files/vumotikumagelip.pdfIn PDF document text
- http://yousefmaktabi.com/ckfinder/userfiles/files/77793422455.pdfIn PDF document text
- http://anhuizpyy.com/upload_fck/file/2021-9-10/20210910045636425720.pdfIn PDF document text
- http://a899.net/userfiles/file/18199881035.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139572b17f0f---neburu.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/5690479464.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/76440216442.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381d8db5b22---fixuxemimuze.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/84789669931.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/vanuwuzibabusakow.pdfIn PDF document text
- http://marinapogon.pl/upload/file/28274359696.pdfIn PDF document text
- http://administratieindex.nl/images/uploads/sajedebabusatimezapivop.pdfIn PDF document text
- http://studiostocchi.eu/userfiles/files/disirizasusu.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16133626a30a1d---vejutipanobil.pdfIn PDF document text
- http://radio-salsa.fr/php/rs/filesupload/file/sinaposuv.pdfIn PDF document text
- http://vkts.se/userfiles/file/7089353509.pdfIn PDF document text
- https://b7b.reviewz.eu/app/webroot/files/userfiles/files/doxibajunuvepikol.pdfIn PDF document text
- http://kaztelcom.kz/ckfinder/userfiles/files/77883949262.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/zezatipijelapisidiwa.pdfIn PDF document text
- https://matagujrischool.com/admin/imagetemp1/file/56138156900.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_off0000bb26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB26 | 16720 bytes |
SHA-256: 53f8a44feff75d90d9dd7edf0fac9534a626725c6cb64b9dcecf19fbd2f7e34c |
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font_01_sfnt_off0000e632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE632 | 10520 bytes |
SHA-256: 5cb9c1961ddf4215b48de45dc8d36ae81004ce85f9bc8eaa08cb50159a32e469 |
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font_02_sfnt_off0000fe0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE0D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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