MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism to host malicious content. The presence of PDF-specific heuristics like PDF_SEO_DISPOSABLE_LINK_FARM indicates a deliberate attempt to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://upaspor.com/resimler/files/surivifax.pdf In PDF document text
- https://studyhalltracker.com/files/file/siroxutipibilenen.pdfIn PDF document text
- http://gdlejia.com/uploadfile/files/20210904_095911.pdfIn PDF document text
- http://eraldocomo.it/userfiles/files/suxebuzujulubinevij.pdfIn PDF document text
- http://wdnederland.nl/file/jafosovinigivozejudoseg.pdfIn PDF document text
- http://botaierpharm.com/upload/files/pupizobamupogakegazejeb.pdfIn PDF document text
- http://hangtatmj.com/userfiles/nekojabepegejepetefesakes.pdfIn PDF document text
- https://eurosan.pl/user_images/file/68619479836.pdfIn PDF document text
- http://ty6600.com/userfiles/file/guvemaxirovitumiwogudilix.pdfIn PDF document text
- https://stichtingech.org/ckfinder/userfiles/files/38259085675.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139de4d18194---61782219277.pdfIn PDF document text
- http://ros-grad.ru/fck_editor_files/files/wopesuwuno.pdfIn PDF document text
- https://nezrenpin.com/calisma2/files/uploads/554000755.pdfIn PDF document text
- http://santabruna.cl/upload/file/93267409484.pdfIn PDF document text
- https://windsbs.biz/files/file/lutamuzonovujilowomagifa.pdfIn PDF document text
- https://abriganature.centralcms.cloud/galeria/files/13310202041.pdfIn PDF document text
- https://demideopool.ro/ckfinder/userfiles/files/14106018222.pdfIn PDF document text
- http://irths.com/upload_files/files/gadusifixifigulofowusig.pdfIn PDF document text
- http://umartravel.com/files/kifufevedodozekevexukole.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1613c60c59d36e---30435686685.pdfIn PDF document text
- https://www.meditech.cz/ckfinder/userfiles/files/pofoporonugagejonuta.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136d2aca5eb0---81073246234.pdfIn PDF document text
- http://fermobkorea.com/userfiles/file/20210906024419.pdfIn PDF document text
- http://huemin.com/fckeditor/userfiles/file/tosiwerofud.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=pokemon+tournament+apkPDF 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_off0000d834.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD834 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f04b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04B | 10300 bytes |
SHA-256: 772aba1e127638eec5c0ab2cb4784874202adb61555b469ebe49f15645e8c924 |
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font_02_sfnt_off0001077d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1077D | 17764 bytes |
SHA-256: aadaa77b2fae8af428483031ad5621a9f42780e7b6b60ce8685960de7cb5e2fc |
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