MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and numerous external URIs. The PDF appears to function as a link farm, directing users to various disposable domains, likely for phishing or malware distribution. The embedded JavaScript stream is a key indicator of malicious intent, likely used to facilitate redirection or exploit.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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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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://queure.ru/uplcv?utm_term=dss+income+maintenance+caseworker PDF link annotation
- http://box8websites.com/ckfinder/userfiles/files/27544773036.pdfIn PDF document text
- http://okuninka-biale.pl/userfiles/file/15258089334.pdfIn PDF document text
- http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/famulironugatiza.pdfIn PDF document text
- http://m-s-g.ru/userfiles/files/rogabakirijawedepasuw.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613dbbd871800---jabag.pdfIn PDF document text
- http://interiorconsignments.com/media/file/78636143967.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/27944327857.pdfIn PDF document text
- http://egitara.com/upfiles/files/16837202867.pdfIn PDF document text
- https://newdesert.pl/userfiles/file/jomuliku.pdfIn PDF document text
- http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/fedelozenisisibazasofiwa.pdfIn PDF document text
- http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47424096956.pdfIn PDF document text
- http://xn--80aer5aza.xn--80aai5amepo3c7b7a.xn--p1ai/ckfinder/userfiles/files/82324564866.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141673ad03c9---xajazuragaviwosat.pdfIn PDF document text
- https://web-dev.ethioapp.com/websites/lightyearsahead/code/userfiles/files/14171056113.pdfIn PDF document text
- https://csn-alliance.com/data/files/20187068020.pdfIn PDF document text
- http://webinaris.blog/ckfinder/userfiles/publics/files/luwobiwukudesedikexaseri.pdfIn PDF document text
- http://dighakanchaninternational.com/FCKeditor/file/gipaxilu.pdfIn PDF document text
- https://rajatotogroup2.com/contents/files/sipaxizaj.pdfIn PDF document text
- http://otevrel.eu/ckfinder/userfiles/files/zujowazadatejagibex.pdfIn PDF document text
- https://philly.drinkpoint.com/uploads/files/502577932.pdfIn PDF document text
- https://efsanepin.com/calisma2/files/uploads/48067065560.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_off0000bd12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD12 | 10524 bytes |
SHA-256: 6c4ec229805074f46d9fe1f990b7ff7f9ed249c0e3fc37b303193165abacb08e |
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font_01_sfnt_off0000d51b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD51B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED2D | 19800 bytes |
SHA-256: 951bf96a87d29a710ee80dfc649a4dfd5972ed2d4886e349779558499cad8a94 |
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