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 numerous embedded URLs, many of which point to other PDF files hosted on disposable domains, indicating a link farm designed to obscure the ultimate destination. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, suggesting a tactic to evade detection by distributing malicious content across many low-reputation hosts.
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 http://mixline.ru/img/lib/file/70881986074.pdf In PDF document text
- http://erdbau-rauch.at/bunesijaxejadumozatakese.pdfIn PDF document text
- http://palami.by/images/file/birinulaluv.pdfIn PDF document text
- http://duetsepolno.pl/userfiles/file/goxejugele.pdfIn PDF document text
- https://wangwangcamp.com/uploads/files/202109031253589378.pdfIn PDF document text
- http://malagi.pl/user-files/fck/file/12985809517.pdfIn PDF document text
- http://odontotecnicacoop.it/userfiles/file/17060107808.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/rizug.pdfIn PDF document text
- http://avvocato-callegaro.it/public/file/98327020751.pdfIn PDF document text
- http://highspiritsmusic.com/ckfinder/userfiles/files/joruk.pdfIn PDF document text
- https://bluetact.com/ckfinder/userfiles/files/muzojujagudes.pdfIn PDF document text
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/cf6ace637591ca758db1782aabd4f45a/jejifupewuvagaki.pdfIn PDF document text
- http://katela.net/userData/board/file/33118033215.pdfIn PDF document text
- http://avandcie-energy.fr/ckfinder/userfiles/files/46915040972.pdfIn PDF document text
- http://asbu.net/uploads/FCK_files/file/tuzuk.pdfIn PDF document text
- https://pezenasenchantee.fr/userfiles/file/segidofo.pdfIn PDF document text
- https://taevlingar.se/images/pages/file/41836178962.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161314a57cae40---34982547543.pdfIn PDF document text
- http://greddy.com/admin/common/ckfinder/userfiles/File/2010575045.pdfIn PDF document text
- http://mcenterdk.ru/fck_editor_files/files/79543086949.pdfIn PDF document text
- http://morebricks.com/ckfinder/userfiles/files/87600692064.pdfIn PDF document text
- http://mutamobilya.com/images_upload/files/83345906711.pdfIn PDF document text
- https://xtrafitcoaching.com/www/images/files/xumefu.pdfIn PDF document text
- https://yingzhaoliuart.com/upload/file/tepinafujemupufuvarobil.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=hide+text+conversations+androidPDF 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_off0000b41c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB41C | 14636 bytes |
SHA-256: 55c1a556c18f3c723f845793a455323ffbca8fd4935c668422e9d80a4c393437 |
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font_01_sfnt_off0000d8e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E7 | 10476 bytes |
SHA-256: c37288e1f703344e8a0081b841b52ba585ab17d3f0ede9b4285dd6df9c6a74be |
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font_02_sfnt_off0000f0d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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