MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, suggesting a phishing or link farm operation. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM further supports this, indicating the PDF is designed to redirect users to multiple disposable hosting sites, likely for credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://infrive.ru/uplcv?utm_term=home+office+login+365 PDF link annotation
- https://vyaspublicschool.com/ckfinder/userfiles/files/83535334862.pdfIn PDF document text
- http://crmrealty360degree.in/userfiles/file/figikavad.pdfIn PDF document text
- http://ferien-in-zahren.de/images/file/sasega.pdfIn PDF document text
- http://pusancard.com/userData/board/file/65083701597.pdfIn PDF document text
- http://hertzlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xodikapixisup.pdfIn PDF document text
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/37119739760.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/dce4ce6a003eebd3937d8694d65eaae5/31207625429.pdfIn PDF document text
- http://freetds.net/userfiles/file/60174092699.pdfIn PDF document text
- http://campingwithconvenience.com/files/files/wefiduwoberur.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/moponugapaze.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/filidon.pdfIn PDF document text
- http://travel-door.com/userfiles/file/56278931759.pdfIn PDF document text
- https://watertorens.nl/userfiles/file/82708260423.pdfIn PDF document text
- http://santamariamikado.com/uploads/files/308919297.pdfIn PDF document text
- http://uteambio.com/upload/files/vumusikawise.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/sepobefubobelunuratako.pdfIn PDF document text
- https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/xojowime.pdfIn PDF document text
- http://open.ua/uploads/ckeditor/files/80097712711.pdfIn PDF document text
- http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/nujok.pdfIn PDF document text
- http://husplaza.hu/editor_up/21669137652.pdfIn PDF document text
- http://polimak.pl/userfiles/file/1799085056.pdfIn PDF document text
- http://kozelsk-adm.ru/files/uploads/files/66986788574.pdfIn PDF document text
- http://ministryofrum.com/memlogos/file/86998210285.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_off0000dea7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA7 | 10616 bytes |
SHA-256: 0a4ef5c874afe428b6b7a4bc12c19171ad0e1666536e3d1d29f4dfe7d9e6f08d |
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font_01_sfnt_off0000f6d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6D9 | 18216 bytes |
SHA-256: 6b567570cdc3a9209c6e066884bce55f69f487bb5422f3824407c6791713b6e1 |
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font_02_sfnt_off000125d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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