MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous embedded URLs pointing to other PDF files hosted on various domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting and multiple distinct hosts, common in phishing campaigns to evade detection. The document body is heavily obfuscated, preventing analysis of its direct content, but the overall structure and heuristics strongly suggest a malicious intent to redirect users to potentially harmful content.
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://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/411171c7f6adb4b8e553167335963da5/wuwopevisirudade.pdf In PDF document text
- https://parlagame.net/calisma2/files/uploads/femofunotilapufiti.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/wolutubivis.pdfIn PDF document text
- http://okun.su/upload/file/32665337003.pdfIn PDF document text
- http://eko-baby.ru/userfiles/file/57003703034.pdfIn PDF document text
- https://eownauto.com/uploadpic/files/jenival.pdfIn PDF document text
- https://ahirealty.in/admin/userfiles/files/gesugefaxadudapegelizutal.pdfIn PDF document text
- https://ochronaskory.pl/pliki_user/File/6258717074.pdfIn PDF document text
- http://union.travel/ckfinder/userfiles/files/16903690679.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/23528644181.pdfIn PDF document text
- https://skvely-kup.cz/files/file/3147072751.pdfIn PDF document text
- https://xtrafitcoaching.com/www/images/files/lasurumekatulerapinikav.pdfIn PDF document text
- https://dutchhaves.com/uploads/files/202109290157575741.pdfIn PDF document text
- http://cnhhgj.com/upfiles/userfiles/file/wamafamonodovikeme.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb0f78ad70---3909277573.pdfIn PDF document text
- http://deeringbayrealestate.com/userfiles/files/88857101255.pdfIn PDF document text
- http://limuzine.md/userfiles/file/jesotixabe.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/20921410658.pdfIn PDF document text
- http://solyaris.pro/admin/ckfinder/userfiles/files/budizowuwogeka.pdfIn PDF document text
- http://vititanon.com/user_img/files/kudogusemebetizuparax.pdfIn PDF document text
- http://perilatomsk.ru/ckfinder/userfiles/files/merimuvalagivujavofofum.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021092417501773499.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=cool+math+games+dolphin+olympics+2PDF 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_off0000ad7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD7B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c592.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC592 | 11124 bytes |
SHA-256: 8c8a4d92d39510244414634ab8603939cf2ff26e1dda8dc0aef6b98bd7753fc9 |
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font_02_sfnt_off0000df44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF44 | 15384 bytes |
SHA-256: e9ebd48bacfde0cc02c2b3b69bf0ac7ccc8ef893feb5483fc9b704498e9e54f6 |
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