MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of multiple unknown-reputation URLs strongly suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file, indicating it likely serves as a lure to download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://coretry.ru/uplcv?utm_term=mp3+song+download+for+pc+windows+7 PDF link annotation
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9d5407bec---gutotiroxomuxop.pdfIn PDF document text
- http://dydlhx.com/upfiles/file///30331651144.pdfIn PDF document text
- https://greenlandpark.com/uploads/files/tawatenelaneladipuro.pdfIn PDF document text
- http://qamsar.org/userfiles/files/38354670349.pdfIn PDF document text
- http://cheniou.handysociality.com/upload/files/bawepunalaxaxuwujareg.pdfIn PDF document text
- http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/laluxelo.pdfIn PDF document text
- http://www.sloepverhuur-debiesbosch.nl/upload/files/45233754354.pdfIn PDF document text
- http://newgrids.com/userfiles/file/rabogekewaworekatiwo.pdfIn PDF document text
- https://littleedupark.com/ckfinder/userfiles/files/mapabemewizokogux.pdfIn PDF document text
- http://s-privod.ru/userfiles/file/pixovaposenunilitu.pdfIn PDF document text
- https://finliz.lt/i/File/nejixejomerodelop.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/zuwevowazapu.pdfIn PDF document text
- http://nguoigiupviec99.com/webroot/img/files/wojilavurapexomaleto.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/7605854519.pdfIn PDF document text
- http://boonfagrandhome.com/user_img/files/52397533459.pdfIn PDF document text
- http://gospelpour100voix.com/fichiers/newsletter/file/7144042135.pdfIn PDF document text
- http://hzbmsj.com/images/upload/File/gegeno.pdfIn PDF document text
- http://owop.challengersports.com/ckfinder/userfiles/files/19953869632.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/sebiti.pdfIn PDF document text
- https://hw-power.com/uploads/ckfiles/files/613d4e3b325fd.pdfIn PDF document text
- http://chenruichem.com/upload/files/62688109272.pdfIn PDF document text
- http://hmondo.com/userData/board/file/38511709490.pdfIn PDF document text
- https://jck.ro/userfiles/file/81194323622.pdfIn PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210905_209CECA21FC4E6E2.pdfIn PDF document text
- http://xn--krmer-dnnebacke-1kb72b.de/files/file/bananugup.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_off0000d751.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD751 | 16788 bytes |
SHA-256: 83a3fd0120bdcaa83127237fa70a48d5c71452a885a903bba8cc2e204d0a1d0d |
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font_01_sfnt_off000102cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102CB | 10868 bytes |
SHA-256: 5dcb2f8861e2759a6da7b1a5471dec35c9490ff0c1c44c6f436b6749ed7cf730 |
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font_02_sfnt_off00011bef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BEF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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