MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of external links, many pointing to disposable domains, suggesting a phishing or malware distribution scheme. The presence of numerous PDF_URI and PDF_RANDOM_URL_LINK heuristics further supports this, indicating the document is designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://cructi.ru/uplcv?utm_term=monster+hunter+stories+apk+obb PDF link annotation
- https://lesura.net/userfiles/file/gukobufebi.pdfIn PDF document text
- http://tantusmarina.com/UserFiles/file/67631970274.pdfIn PDF document text
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/befitixixinuropidaj.pdfIn PDF document text
- http://zeci.nl/im/image/puwilerubemekoxiret.pdfIn PDF document text
- https://dla-pracownika.pl/pliki_user/File/48781715908.pdfIn PDF document text
- http://ambulatorioveterinariovianello.eu/userfiles/files/daluv.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/1f71727c960ae3f490617ccfd736d897/92047137864.pdfIn PDF document text
- https://campermagazine.tv/public/file/95661160218.pdfIn PDF document text
- https://vwb.mrv-educationservices.com/content_file/files/2444232041.pdfIn PDF document text
- https://ksmt.edu.np/assets/ckfinder/userfiles/files/39615909972.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/20635451755.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/molifogilunukalu.pdfIn PDF document text
- http://cu-hinothai.com/ckfinder/userfiles/files/disenavikuzorolurexu.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/6664027b0018eeece16c151a7a6c7f91/nejesizozasexedizag.pdfIn PDF document text
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/90927730368.pdfIn PDF document text
- http://laureysnv.be/uploads/files/90170033845.pdfIn PDF document text
- https://silverbirdmarketing.com/pages/images/file/tuxoze.pdfIn PDF document text
- http://td-mg.ru/uploads/files/6783332592.pdfIn PDF document text
- https://cyc-catering.pe/disac/userfiles/file/vafovinuvowowalutifim.pdfIn PDF document text
- http://ardennes.proximeo.com/ckfinder/userfiles/files/gomexige.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/90142207144.pdfIn PDF document text
- http://manchetenewsms.com.br/ckfinder/userfiles/files/petosotiwanazo.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_off0000d0d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0D4 | 10628 bytes |
SHA-256: d617272f77bc77d96a113c34d97304abeefd3bed2c7ba2a76ca0485e1993e704 |
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font_01_sfnt_off0000e8e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E2 | 17052 bytes |
SHA-256: 4cf152779a1ee0ddafdc52f7f46a8636f4e5d955e04f1c3e762d0751b782f8e4 |
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font_02_sfnt_off0001151e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1151E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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