MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, suggesting it functions as a link farm or redirection mechanism. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically indicates a non-clustered link farm on disposable hosting, reinforcing the phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://catamma.ru/uplcv?utm_term=differentiation+of+cosec+x PDF link annotation
- https://grandhotelbulgaria.com/userfiles/file/73254214774.pdfIn PDF document text
- https://brihat-group.com/assets/userfiles/files/86111713173.pdfIn PDF document text
- http://svatba-emi.com/uploads/pages/files/duwumobokitukuwifasi.pdfIn PDF document text
- http://plncse.hu/php_data/file/60736623877.pdfIn PDF document text
- http://dighakanchaninternational.com/FCKeditor/file/80405621479.pdfIn PDF document text
- http://shengyaweb.com/uploadfile/file/2021092101301579.pdfIn PDF document text
- http://modern-pro.ru/files/file/70744149693.pdfIn PDF document text
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/ea4ed77a9a7c096f2b3d94a24a4c8664/98508851142.pdfIn PDF document text
- https://sakesushimn.com/userfiles/files/rajoposififonanoropi.pdfIn PDF document text
- http://szentimresiklos.hu/upload/file/2816331297.pdfIn PDF document text
- http://babamoleskine.com/files/file/juwagotosemeketimumebe.pdfIn PDF document text
- http://spostojow.pl/userfiles/file/29634961513.pdfIn PDF document text
- https://waelfawzy.com/userfiles/file/In PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/5420603308.pdfIn PDF document text
- https://banifatemehmashhad.ir/userfiles/file/kelipikupuvifarirakone.pdfIn PDF document text
- http://nutronicltd.com/userfiles/file/jomoxabibudopeborilebikiz.pdfIn PDF document text
- http://gwtcs.org/Content/uploads/files/wegonovigezepepetad.pdfIn PDF document text
- http://fruhmann-elektrotechnik.at/kusizubewofekaxidijutup.pdfIn PDF document text
- http://hainfelderteich.at/80985447468.pdfIn PDF document text
- http://clinicaveterinariacene.com/userfiles/files/lasamometuvatozixopuxut.pdfIn PDF document text
- https://zhansq.cn/upload/file/lekusuxiwur.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16154217347eaa---rozepibewivekilosipula.pdfIn PDF document text
- http://getem.pl/files/file/8698210162.pdfIn PDF document text
- https://stallion-international.com/userfiles/file/38629529100.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_off0000bca7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d4be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4BE | 10388 bytes |
SHA-256: 31e974b6d0961a15d1b0c0d1cd0f259140a3e0b5ba8242dd3d3a844ef3f72615 |
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font_02_sfnt_off0000ec68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC68 | 19804 bytes |
SHA-256: 641d11537b63b6acb757556dcc02151c9c21c81eebdc2061dcb53621e0a60d16 |
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