MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many pointing to compromised or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis point to a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://garglob.ru/uplcv?utm_term=refuse+to+choose+book+pdf PDF link annotation
- http://www.aunay-sous-auneau.fr/ckfinder/userfiles/files/88507922358.pdfIn PDF document text
- http://sun-tes.ru/files/file/2419758649.pdfIn PDF document text
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/migefatawifoxibeteru.pdfIn PDF document text
- https://ciela13.leaddeehub.com/userfiles/files/wivojopo.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/q7ed1u8trep8q3dsb0q0vkn7k0/42867424048.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fed805ca4a---66484890314.pdfIn PDF document text
- https://westhigienia.hu/editor_up/60861148393.pdfIn PDF document text
- https://zoldlepes.hu/userfiles/file/ribupanipo.pdfIn PDF document text
- https://ktmcollege.org/public_html/userfiles/file/tarajelowaleku.pdfIn PDF document text
- http://gesht.ru/admin/ckfinder/userfiles/files/vaxibom.pdfIn PDF document text
- https://sharedsynergy.com/userfiles/file/52198917729.pdfIn PDF document text
- http://parmalab.it/userfiles/files/farodexedilepebinakopufik.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/4adc66b1305e580ef42e12add707a1a7/gubajopuvet.pdfIn PDF document text
- http://intertermo.nl/userfiles/file/59817881297.pdfIn PDF document text
- https://1tlstar.com/storage/uploads/files/gotaxoviliwawasekek.pdfIn PDF document text
- http://geo-equipe.it/userfiles/files/mowipadige.pdfIn PDF document text
- http://limuzine.md/userfiles/file/8664667158.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/22755961474.pdfIn PDF document text
- http://wxbeimei.cn/upload/ckimg/files/202109080701208920.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/35092893617.pdfIn PDF document text
- https://self-storage.sg/images/uploadedimages/file/4551928706.pdfIn PDF document text
- https://himalayanespresso.com/espresso_ckfinder/userfiles/files/sotuxirazop.pdfIn PDF document text
- https://rt9.rspo.org/ckfinder/userfiles/files/rufivovolexur.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_off0000e051.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE051 | 17228 bytes |
SHA-256: 0d0cff8e3cd0953f9bd3cf5d215ee02072038400388396882681797e79657d58 |
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font_01_sfnt_off00010d4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D4C | 10588 bytes |
SHA-256: c93a3ca18a70da0900bcec54eef9b60b9df95be03ae978c3295967dcd6a03e04 |
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font_02_sfnt_off00012577.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12577 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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