MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. The PDF also contains numerous external URIs, many of which point to disposable domains and are part of a link farm, suggesting a phishing or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 6
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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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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 https://mycultureis.com/FileData/ckfinder/files/20210927_D9571013CE273D1B.pdf In PDF document text
- https://hse.tw/upload/file/ralimobedasefitidadi.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16135c89c63e48---tuxikaj.pdfIn PDF document text
- http://quiltingacademy.com/fckeditor/userfiles/file/89595546470.pdfIn PDF document text
- http://seowonbattery.com/files/fckeditor/file/182373509161506a3556934.pdfIn PDF document text
- https://jaurrieta.net/USERFILES_JAURRIETA/files/90366088614.pdfIn PDF document text
- http://filtrydokoparek.pl/img/all/sisunexixivata.pdfIn PDF document text
- http://joyearland.com/ckfinder/userfiles/files/79887018780.pdfIn PDF document text
- https://yapluka-services.fr/userfiles/file/begononesurinesara.pdfIn PDF document text
- http://studioferrato.it/userfiles/files/95560274094.pdfIn PDF document text
- http://a-aqua.fr/ressource/site-image/files/13085344546.pdfIn PDF document text
- http://juditphotography.com/picture/userfiles/file/vetesopova.pdfIn PDF document text
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/puses.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/161354271eedd2---13396675649.pdfIn PDF document text
- http://perevodvnegiloifond.ru/pict/file/6156256094.pdfIn PDF document text
- http://ecme.site/upload/files/73872309038.pdfIn PDF document text
- http://novelinternationalschool.com/ckfinder/userfiles/files/64670492727.pdfIn PDF document text
- http://kerekesvillszer.hu/UserFiles/file/zipabofekugaf.pdfIn PDF document text
- http://ryouhurt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zujoji.pdfIn PDF document text
- http://paraglider24.de/pics/fotos/1/file/14729489156.pdfIn PDF document text
- http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/dazekikesavefumeru.pdfIn PDF document text
- http://prodottoitalia.eu/userfiles/files/romudom.pdfIn PDF document text
- http://healhumanity.foundation/userfiles/file/dexagepa.pdfIn PDF document text
- http://airsoft1.ro/files/file/46618604684.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/gadopubimepukogajakigibox.pdfIn PDF document text
- https://guadix.co/ckfinder/userfiles/files/kolaremebajibemeboxidewek.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=someone+like+you+oh+ohPDF 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_off0000ebcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBCF | 22756 bytes |
SHA-256: 88309efdf67056a5b29072680a682b4a92eb9915a85b363f314fc79179b686c3 |
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font_01_sfnt_off00012694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12694 | 10224 bytes |
SHA-256: e5dd1b52286a9a17deed944ab933487bee91bd221d7199797bfb5834fa7d3002 |
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font_02_sfnt_off00013d45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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