MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that redirect to various domains, suggesting a phishing or link-farming operation. The PDF structure and the presence of external URIs point towards a spearphishing attachment attack vector, aiming to redirect users to potentially malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9875
Heuristics 5
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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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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://ketchas.ru/uplcv?utm_term=sociology+notes+pdf+for+ias PDF link annotation
- http://ascensionchina.com/userfiles/file/bujem.pdfIn PDF document text
- http://velapower.com/glwh/UploadFile/file/2021090617504373499.pdfIn PDF document text
- http://nacyc.jp/Upload/file/93774167054.pdfIn PDF document text
- http://fujavietnam.com/images/Download/25900257492.pdfIn PDF document text
- http://digitalpolicycouncil.com/imagenes/file/favejajanitu.pdfIn PDF document text
- http://acpiindia.com/userfiles/file/90848058788.pdfIn PDF document text
- https://webmakler.org/userfiles/file/62588136586.pdfIn PDF document text
- http://hz-kontejnery.cz/ckfinder/userfiles/files/42417024734.pdfIn PDF document text
- https://ceccarbotosani.ro/userfiles/file/fowofunuvopenagikune.pdfIn PDF document text
- http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/19464960226.pdfIn PDF document text
- https://mt-creativestudio.com/ckfinder/userfiles/files/nimuzeki.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d60c6709f---jorodizuvi.pdfIn PDF document text
- http://hcwan.com/userfiles/file/3320990733.pdfIn PDF document text
- https://btegypt.com/file/91213078677.pdfIn PDF document text
- http://sharon-barron.com/userfiles/files/88661979597.pdfIn PDF document text
- http://sanraimundo.cl/dyn/uploads/file/13272265134.pdfIn PDF document text
- https://tivicom.vn/upload/files/60077228309.pdfIn PDF document text
- https://sanaspinler.com/calisma2/files/uploads/29311189890.pdfIn PDF document text
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95394053492.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/ec85c04760695228dceb9423576d7c79/31775327230.pdfIn PDF document text
- https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/950463442.pdfIn PDF document text
- http://opakowania-loga.pl/zdjecia/fotki/file/45723347553.pdfIn PDF document text
- http://vssteel1999.com/ckeditor/userfiles/files/43104357120.pdfIn PDF document text
- http://crc.creativechange.net/ckfinder/userfiles/files/zorugivizabebuxatuta.pdfIn PDF document text
- http://www.focitabor.hu/userfiles/file/23053782514.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/38598631379.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_off0001155b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1155B | 20464 bytes |
SHA-256: d6e8436d74a6593b691febf8797ce19f6c02abb4768e70cddb3489eef832d240 |
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font_01_sfnt_off00014b19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00016330.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16330 | 10984 bytes |
SHA-256: 3e887bfda601fb4b8764d1a0683fbfc625e94856437ff37436245453643e4738 |
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