MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic 'ML_NYX_PDF_MALICIOUS' with a high model output strongly indicates malicious intent. The presence of numerous external URIs, many pointing to disposable domains, suggests a link farm or redirection mechanism designed to lead users to malicious content, likely phishing pages or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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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://projekt-lesen.de/userfiles/file/35173999129.pdf In PDF document text
- https://angkoronetour.com/userfiles/file/videkesemamudonerazaro.pdfIn PDF document text
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/80153788745.pdfIn PDF document text
- https://marblobath.com/app/webroot/img/files/97570659449.pdfIn PDF document text
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81019694804.pdfIn PDF document text
- http://builderall.info/userfiles/file/10315014039.pdfIn PDF document text
- http://thetestmag.com/userfiles/files/1969413098.pdfIn PDF document text
- http://www.stsmcc.org/www/js/ckfinder/userfiles/files/84666069640.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/pugatadoto.pdfIn PDF document text
- https://arte-salon.ru/upload_picture/vakisewopozo.pdfIn PDF document text
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/36934222376.pdfIn PDF document text
- https://cissud.it/uploads/ck_editor/files/wokusop.pdfIn PDF document text
- http://kesifveotesi.com/files/sexuzowawulizululigovo.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133bc73a2f87---8300781501.pdfIn PDF document text
- http://faurau.com/luodan/images/userfiles/file/fuzug.pdfIn PDF document text
- http://trungtinjsc.vn/upload/FCK/file/28431578495.pdfIn PDF document text
- http://deepakbatteries.com/uploads/file/26467280272.pdfIn PDF document text
- https://ta-taiwan.com/app/webroot/userfiles/files/vezetutifiji.pdfIn PDF document text
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/92896719781.pdfIn PDF document text
- http://studiotecnicoligioni.com/userfiles/files/buwipaxesuxulav.pdfIn PDF document text
- http://qdsenfeng.com/data/files/nusebobalimujosagekuwadi.pdfIn PDF document text
- http://lhdrum.com/User_File/UpFile/file/20210901222851_ZHVrZW1hcGFzZW5lbGk=.pdfIn PDF document text
- http://hostingureitings.lv/uploads/userfiles/files/58981756308.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=android+messages+font+sizePDF 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_off0000d666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD666 | 10692 bytes |
SHA-256: 5e02ecda83fa2488fdf10b71eccbb92d975f373482587003305dd6232520fa0d |
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font_01_sfnt_off0000eec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC2 | 19600 bytes |
SHA-256: d42160ab5e2cdb6ff23c9da5593fbc382efce8fbb9ba02ecc4ef59dba7f87731 |
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font_02_sfnt_off00012117.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12117 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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