MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many pointing to compromised CMS uploads, suggesting a link farm designed to redirect users to malicious content. The URL 'https://medvor.ru/uplcv?utm_term=download+rfs+real+flight+simulator' indicates a lure for a simulator download, which is a common phishing tactic. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://medvor.ru/uplcv?utm_term=download+rfs+real+flight+simulator PDF link annotation
- http://volkshilfe-vlbg.at/images/content/files/6342804170.pdfIn PDF document text
- http://hightopeducation.com/cms_uploaded/file/manerajekobir.pdfIn PDF document text
- http://taiwan-casters.com/userfiles/file/nesofazijibul.pdfIn PDF document text
- http://potlista.com/file/files/19257218584.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161364b528d49f---60333407927.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614235836f43e---tesarugez.pdfIn PDF document text
- http://opt-russtd.ru/data_center/upload_pictures/file/5274824940.pdfIn PDF document text
- http://ficfart.org/userfiles/file/lugejo.pdfIn PDF document text
- http://beiwendq.com/data/attachment/file/72464300595.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16143932178b84---gupeg.pdfIn PDF document text
- http://chieusangducphat.com/uploads/userfiles/file/fobijuxiwajazujezupa.pdfIn PDF document text
- http://bekkercoon.ru/ckfinder/userfiles/files/61125238234.pdfIn PDF document text
- https://valstybestarnyba.com/upckfinder/files/1983223653.pdfIn PDF document text
- http://king-pro.com/userfiles/files/26089967963.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/rimobodapilodizisoseg.pdfIn PDF document text
- https://namkhoasaigon.vn/web/images/files/kepilorobaxopisisasiviw.pdfIn PDF document text
- http://vertracapital.com/uploads/files/89446338112.pdfIn PDF document text
- https://khanikango.in/file/37101628474.pdfIn PDF document text
- https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/69256273785.pdfIn PDF document text
- http://kingtonkatsu.com/uploads/files/relezenevabekodaf.pdfIn PDF document text
- http://perles-del-beya.com/userfiles/file/lavajafuturevidobikakunez.pdfIn PDF document text
- http://myarrahnu.com/mo_images/files/winunuweguzomolap.pdfIn PDF document text
- http://grandp.ru/userfiles/file/85688937029.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134cb636816d---85401224089.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_off0000f37a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF37A | 17728 bytes |
SHA-256: fc6ba26acdd723cc86203e611baa80a4332e7dbf98809a88ddced43997027934 |
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font_01_sfnt_off000121ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000139c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139C2 | 10988 bytes |
SHA-256: 502cc3f8b47e88078f487271c8f7a693218dd4981d2f4853f67994cb04f39fce |
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