MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URLs, many pointing to PDF files on potentially disposable hosting, suggests a phishing or link-farming operation. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the PDF is part of a network designed to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://sushistoryus.com/uploads/files/jotorapetelajugizamo.pdf In PDF document text
- https://gospel-streams.com/asset/ckfinder/userfiles/files/99995449528.pdfIn PDF document text
- http://bsa-billiard.by/images_from_html_editor/file/zevalezobudugazetupudo.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/30923384476.pdfIn PDF document text
- https://ncsccalgary.com/userfiles/files/21722224188.pdfIn PDF document text
- https://dongciao.com/uploads/files/202109011227509420.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/21b879846a247f9ebaef7b99b58934b4/negetizakumogerikavexu.pdfIn PDF document text
- https://bosingels.nl/ckfinder/userfiles/files/8134729571.pdfIn PDF document text
- http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/duludakasobumos.pdfIn PDF document text
- http://www.mediagrand.hu/data/editorfile/belenizigawumi.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/2021913208398680.pdfIn PDF document text
- http://theaterbuehne-schwandorf.de/userfiles/file/walepotubatageduzubasut.pdfIn PDF document text
- http://zgkimsteszew.pl/img/upload/files/nasisefalalibi.pdfIn PDF document text
- http://inruho.ru/ckfinder/userfiles/files/vafenexibudelot.pdfIn PDF document text
- https://santa.my/images/users/00000000/files/wagizoxebefasatew.pdfIn PDF document text
- https://hoongnau.com/upload/files/rowazegesu.pdfIn PDF document text
- http://studiopetrilli.it/userfiles/files/dabifujumixo.pdfIn PDF document text
- https://xlspandoek.nl/userfiles/file/79461119878.pdfIn PDF document text
- https://wietsevoermans.nl/ckfinder/userfiles/files/domutowusu.pdfIn PDF document text
- http://gyndoktors.de/ckfinder/userfiles/files/5079087864.pdfIn PDF document text
- http://phamtrangia.site/upload/files/55149138923.pdfIn PDF document text
- https://medarbindia.org/ckfinder/userfiles/files/novipekatevijetofip.pdfIn PDF document text
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/makoxuroxurijesavewaj.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=gloud+games+hack+modPDF link annotation
- 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_off0000e128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE128 | 10652 bytes |
SHA-256: 5d281f7d7161956ed46fed911450e5ffe772aad446e68f1ffcf45052d68c17f0 |
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font_01_sfnt_off0000f963.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF963 | 18320 bytes |
SHA-256: e7ac0c2977ec24ba4ba0749893a45b8c4b948835346be11bbb5de597059c6a87 |
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font_02_sfnt_off0001298b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1298B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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