MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a credential phishing lure. The embedded JavaScript and numerous external URIs suggest an attempt to redirect the user to a malicious site for credential harvesting or MFA abuse. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the heuristics strongly indicate a phishing or MFA-stealing scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdaa21448e---fedajewatogawawugof.pdf In PDF document text
- https://profix.fr/ckfinder/userfiles/files/49171370464.pdfIn PDF document text
- http://80tner.friend-match.com/upload/files/4746013117.pdfIn PDF document text
- http://huanghels.com/filespath/files/20210907003531.pdfIn PDF document text
- http://hourinkan.net/js/upload/files/3676732051.pdfIn PDF document text
- https://luiginoiobbi.com/userfiles/file/duzotewumonimimitu.pdfIn PDF document text
- http://ccsup.co.th/uploads/ckfinder/files/29181393623.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/85197161268.pdfIn PDF document text
- http://frutapacargentina.com/ckfinder/userfiles/files/4618145129.pdfIn PDF document text
- http://www.hebrewforreadingcomprehension.com/content/zobelamik.pdfIn PDF document text
- https://www.khaosanpools.org/ckfinder/userfiles/files/geled.pdfIn PDF document text
- https://sofahatinh.com/upload/files/sutuzusawemowok.pdfIn PDF document text
- http://hycxchina.com/filespath/files/20210904142731.pdfIn PDF document text
- http://www.pratikchoudhury.com/fckimages/file/7460644643.pdfIn PDF document text
- http://dd-eng.com/files/files/sidanidavanusapa.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/g33lht57bbr8mmtp8uv7m44fu6/512987079.pdfIn PDF document text
- https://ajitcoatings.com/uploads/titulutirudavamaweja.pdfIn PDF document text
- https://profitaler.com/UserFiles/file/54364402675.pdfIn PDF document text
- http://nanouklid.cz/upload/file/81218251818.pdfIn PDF document text
- http://klasykarozrywki.pl/public/images/fck/file/pisulozetiwerizux.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/sugemaxibituludil.pdfIn PDF document text
- https://svarovanijelinek.cz/ckfinder/userfiles/files/35907632420.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=react+native+ios+deployPDF link annotation
- 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_off0000dcd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCD5 | 18876 bytes |
SHA-256: cf18a327ec4407b46cd7233b85735bd1c76d90dfeb26435501718d795db8302b |
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font_01_sfnt_off00010e4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E4A | 10632 bytes |
SHA-256: bd214d009cd73fa9f7903baa14e3a84811f3880484e0c93f5cc0c9337f459f28 |
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font_02_sfnt_off000126cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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