MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting an attempt to redirect users to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://krisoc.ru/uplcv?utm_term=gta+5+download+no+verification+apk PDF link annotation
- http://asude.istanbul/ck_images/files/nugijukigoxugisikolizo.pdfIn PDF document text
- http://kite-surf.sk/files/25421611575.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/70082012451.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/81646663702.pdfIn PDF document text
- http://asclyziarskyklub.sk/userfiles/file/88377432571.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/161365cd625a1e---23694340349.pdfIn PDF document text
- https://torbay.ru/images/uploads/file/26964239930.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/sunumezabezujuvevuretug.pdfIn PDF document text
- http://ateliergermain.net/sites/default/files/file/riwikufuwemufukugaxorar.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1613925f007074---54713009643.pdfIn PDF document text
- http://bytip.net/filespath/files/20210901054406.pdfIn PDF document text
- https://dhins.com/testingsites/advantage_aviation/assets/media/file/jevozevimego.pdfIn PDF document text
- http://www.focitabor.hu/userfiles/file/10785203253.pdfIn PDF document text
- http://birkhoffhi.com/userfiles/files/vurelevubezo.pdfIn PDF document text
- https://foundationkuzmanov.com/files/5465388967.pdfIn PDF document text
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/dokoxatowe.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/37509253938.pdfIn PDF document text
- https://contact-house.com/fckeditor/upload/file/16097483727.pdfIn PDF document text
- http://www.ambatownship.com/ckfinder/userfiles/files/najusuziwukulamonol.pdfIn PDF document text
- http://hoshitorionline.com/uploads/files/79310881228.pdfIn PDF document text
- https://esvigo.com/upload/files/zeduxutefawabidu.pdfIn PDF document text
- http://stlnsk.ru/uploads/file/tusaxumafesebifaxuz.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/33998453614.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_off0000c0d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0D1 | 16364 bytes |
SHA-256: ae33ab3292516ca4a80097b00bc63061985b23bccdd23fb712432117af25e6d3 |
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font_01_sfnt_off0000eafd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAFD | 10860 bytes |
SHA-256: b53230764b3945b32dd95e4fae7d34e9b8c3c22232c3604eaabd2e5711034a90 |
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font_02_sfnt_off0001045a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1045A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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