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, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which are on disposable domains and appear to be part of a link farm designed to redirect users. One notable URL is https://philabc.ru/uplcv?utm_term=walking+dead+season+10+episode+1+online+free, which attempts to lure users with popular media content. The document body is heavily obfuscated, preventing analysis of its direct content, but the heuristic findings strongly indicate a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://philabc.ru/uplcv?utm_term=walking+dead+season+10+episode+1+online+free PDF link annotation
- http://lamorenj.com/userfiles/file/vunadobivove.pdfIn PDF document text
- http://khocabien.com/uploads/files/vefakafebesiva.pdfIn PDF document text
- http://seksdagen.nl/userfiles/file/divujil.pdfIn PDF document text
- https://jagamimpi.net/contents/files/ruzibopisi.pdfIn PDF document text
- http://snft.ro/media/file/belamuwerobumele.pdfIn PDF document text
- https://cosmetic.dilen.top/upload/files/finasajesosi.pdfIn PDF document text
- https://cubic.is/userfiles/file/pugoxe.pdfIn PDF document text
- https://quatden.vn/webroot/img/files/56261301570.pdfIn PDF document text
- http://cukorbetegshop.hu/files/52266186848.pdfIn PDF document text
- https://media-get.ru/userfiles/files/48609985296.pdfIn PDF document text
- http://nutrizionisti.eu/public/thread/risorse/file/15073082492.pdfIn PDF document text
- http://gjbbang.com/userData/board/file/wuwanoxafotuto.pdfIn PDF document text
- http://itaxabc.com/userfiles/file/20210906162033_2062480591.pdfIn PDF document text
- https://artistaone.co/userfiles/files/99669821312.pdfIn PDF document text
- https://pacpartner.net/images_client/imagesfile/gusikoxanifopagafaxulobuf.pdfIn PDF document text
- https://erdemlerkoleji.com/resimler/files/terudedozo.pdfIn PDF document text
- https://yptea.com/data/fckeditor/files/teran.pdfIn PDF document text
- http://innotack.com/userfiles/files/jirujot.pdfIn PDF document text
- https://wickedcheesy.com/images/file/57811100490.pdfIn PDF document text
- http://barexkft.hu/userfiles/file/14913686754.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/4686427532.pdfIn PDF document text
- https://siemreaptraveltours.com/userfiles/file/61012261784.pdfIn PDF document text
- http://belgium-ex.com/images/blog/file/46936614251.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/3201ffb391814181390242c66efc6b2b/82525413082.pdfIn PDF document text
- http://studiovalecchi.it/userfiles/files/76307591734.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_off0000d91f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD91F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f131.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF131 | 17820 bytes |
SHA-256: a073c7f3e55cf36aa992b4b87e150a7169c9a05d46865f5f79469f3e21acb4b9 |
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font_02_sfnt_off00011f07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F07 | 10836 bytes |
SHA-256: 174ca282156237d7b9d399f346c675b974332c235a26cd40eadcf62d51068014 |
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