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. It also features numerous external URIs, many of which are on disposable hosting and use UTM parameters, suggesting a link farm or phishing campaign. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://crewmak.ru/uplcv?utm_term=swiss+cheese+lactose PDF link annotation
- http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/1369459416.pdfIn PDF document text
- http://sushimura1.com/uploads/files/76538841211.pdfIn PDF document text
- http://bertrandetgastineaudesigners.fr/userfiles/file/23502498066.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614e0bbe57812---vafobekobimibekekusira.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/feluji.pdfIn PDF document text
- http://tuvanluatdanang.com/upload/ck/files/4564131903.pdfIn PDF document text
- http://kencert.vn/uploads/image/files/lufaremuzetarafokevavomos.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/71749942757.pdfIn PDF document text
- https://weekendtripskolkata.com/userfiles/file/66343519091.pdfIn PDF document text
- http://idevicesplus.nl/app/webroot/files/userfiles/files/29055309026.pdfIn PDF document text
- https://energooptima.hu/upload/File/47474449480.pdfIn PDF document text
- http://nollve.com/img/editor/image/file/42860973644.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/24391305509.pdfIn PDF document text
- http://gamboeng.com/assets/ckfinder/userfiles/files/dipaduvideparinisemawo.pdfIn PDF document text
- http://yuc-fac.com/uploadfiles/20210927203148.pdfIn PDF document text
- http://studiodara.eu/userfiles/files/58869205169.pdfIn PDF document text
- http://aapltd.net/userfiles/file/sapetegojuzozepolado.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/46773619419.pdfIn PDF document text
- https://sunpower.lv/ckfinder/userfiles/files/74252583665.pdfIn PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/d680fe6543f6241664ecb58b091451f1/28016063501.pdfIn PDF document text
- http://gdfsztal.com/uploadfile/files/58654293544.pdfIn PDF document text
- http://st-ark.it/userfiles/files/4867044757.pdfIn PDF document text
- https://ottopianos.nl/files/duzagozux.pdfIn PDF document text
- https://derya.afmiletisimajansi.info/resimler/files/tegiwafegojekif.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_off0000e647.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE647 | 10284 bytes |
SHA-256: 98fa8fac231547543304610b305652f54321375d34d5f236f0d64b4873f1d7dc |
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font_01_sfnt_off0000fda5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDA5 | 18728 bytes |
SHA-256: 1b614fc3606f6dd22b14f70687e111d5bd413264594d6911a9e460333bce17e4 |
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font_02_sfnt_off00012df6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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