MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous embedded URLs, many of which are on disposable hosting and appear to be part of a link farm, strongly suggests a phishing or malware distribution campaign. The document body is heavily obfuscated, but the overall structure and heuristic firings point to a malicious PDF designed to redirect users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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://chcial.ru/uplcv?utm_term=carrom+pool+hack+mod+download PDF link annotation
- http://lavalnerina.com/userfiles/file/39480657024.pdfIn PDF document text
- http://alacarte-husum.de/userfiles/file/lixetopaxuzevaratosemo.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/jijumexagete.pdfIn PDF document text
- http://elfast.ru/userfiles/file/88894999766.pdfIn PDF document text
- http://pololanna.com/user_img/files/ziresenijepugiraxujurup.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/1p3p05osji1vk3s87l56mb3ok1/walotetoxabomupapuv.pdfIn PDF document text
- http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/nuwenevu.pdfIn PDF document text
- http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95651352807.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/muxedezin.pdfIn PDF document text
- http://fujiya-la.com/uploads/files/dabedurip.pdfIn PDF document text
- https://alhasooncorp.com/Files/files/bufakapage.pdfIn PDF document text
- http://haciogullari.com/depo/sayfaresim/file/29180842197.pdfIn PDF document text
- http://naturestuff.nl/siteimages/file/83726445186.pdfIn PDF document text
- https://jodhpurtravels.com/nbloom/fckuploads/file/19618511975.pdfIn PDF document text
- http://offerparts.com/upload/files/49145141067.pdfIn PDF document text
- http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/65441249643.pdfIn PDF document text
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/fd5c3a4e74bea139f4c3498be73cfb32/tiribotovumaxikagakugug.pdfIn PDF document text
- https://ndmoyun.com/calisma2/files/uploads/rulezesojifene.pdfIn PDF document text
- http://5mal4.de/moneyvidya/web/images/userfiles/file/38908985754.pdfIn PDF document text
- http://dfanchem.com/upload/files/madutuwegir.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/zomufuvasekupusuba.pdfIn PDF document text
- http://resortvillairene.it/userfiles/files/96518272576.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/pejonelidibogakizalibag.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/xazisupobirapetefo.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_off0000db5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f371.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF371 | 10496 bytes |
SHA-256: 51a5abea4bfb3fbc40e7c47cbd457e9aa873c406d1a5af1f60d4ec462b8e9ad1 |
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font_02_sfnt_off00010b25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B25 | 17304 bytes |
SHA-256: d7cc97d979da6913187bcd8a3387d4fc88d45cbeb57c5dd8f5b5084671d6cb04 |
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