MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with a specific heuristic identifying it as a 'link farm on disposable hosting'. The presence of external URIs like 'https://chcial.ru/uplcv?utm_term=bar+chart+with+two+variables' suggests an attempt to redirect users to potentially harmful content, aligning with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.5354
Heuristics 4
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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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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://chcial.ru/uplcv?utm_term=bar+chart+with+two+variables PDF link annotation
- http://sydjpg.com/images/upload/file/20210914_002705_156.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/dikawako.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/87361843447.pdfIn PDF document text
- http://uniradioweb.info/userfiles/file/59947394389.pdfIn PDF document text
- http://abwcrainhwy.com/uploads/files/vujox.pdfIn PDF document text
- http://tvsatkrosno.pl/userfiles/file/89261316162.pdfIn PDF document text
- http://alanaf.ru/userfiles/files/timekimuzidojegumopolipor.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/xatejumaromipe.pdfIn PDF document text
- http://xn--9i1b14lwsg1seumdzsx.com/upload/fckeditor/file/vagubakifitonuxitide.pdfIn PDF document text
- http://studiotecnicobonoli.com/userfiles/files/ferolasor.pdfIn PDF document text
- http://ychnjl.net/userfiles/files/liwinalufubegexob.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/womoref.pdfIn PDF document text
- http://sgrdinstitutionspandher.org/sgrd/userfiles/file/74942503708.pdfIn PDF document text
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/96757910652.pdfIn PDF document text
- http://sk-uralstroy.ru/uploads/files/78204511377.pdfIn PDF document text
- http://primaria-ciocirlia.ro/media/file/pewezezupatowo.pdfIn PDF document text
- http://gokea.org/upload/editor/files/kujeduzolojalavujugod.pdfIn PDF document text
- https://autopsrus.aerovents.com/ckfinder/userfiles/files/jexupilonixa.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/358a668fb4613355a8dbc63001bc3fd5/sewojetejalibatevamoni.pdfIn PDF document text
- http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wanavajofupuzemexabizevef.pdfIn PDF document text
- http://sentezetutmerkezi.com/upload/ckfinder/files/sixatojuko.pdfIn PDF document text
- https://quangcaowebsite.vn/uploads/files/nepegeneviju.pdfIn PDF document text
- https://petrovsky14.ru/docs/files/32145852057.pdfIn 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_off0000c5e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ddfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDFB | 10568 bytes |
SHA-256: f2637537e477a68b976113fd3ebf1451ee7f30ea4e6c92c26eb9a7072c31640b |
|||
font_02_sfnt_off0000f65b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF65B | 17760 bytes |
SHA-256: c0fd3e9838b24920646accbd87e7ac318ad8bdd0568286b78b5ced1baa62a8d8 |
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