MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains numerous embedded URLs, with one specifically pointing to a URL that appears to be a download lure for 'windows 10 pro 64 bit 2021 iso'. The presence of a 'download button' heuristic further supports the phishing or malware distribution intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's part of a phishing or malware delivery chain.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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 https://crewmak.ru/uplcv?utm_term=windows+10+pro+64+bit+2021+iso PDF link annotation
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136745cab4ed---boxek.pdfIn PDF document text
- https://www.educazionesessuale-scuola.ch/ck/ckfinder/userfiles/files/47398120619.pdfIn PDF document text
- https://vaitinhdien.com/app/webroot/upload/files/3959354662.pdfIn PDF document text
- https://e-tta.com/app/webroot/userfiles/files/dakezigusabajozon.pdfIn PDF document text
- http://tsrmvolontari.it/userfiles/files/63490163549.pdfIn PDF document text
- http://autobedrijvenindex.nl/images/uploads/62371859033.pdfIn PDF document text
- https://www.groupe-coelho.fr/ckfinder/userfiles/files/levaku.pdfIn PDF document text
- http://aan.kz/ckfinder/userfiles/files/givegezabizu.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/c5c11jcpjvetlveg33qmugoua7/wipugidikatutak.pdfIn PDF document text
- http://savvyais.com/userfiles/file/gagajobobuliwalegubel.pdfIn PDF document text
- https://eliteplacementagency.com/uploads/files/vosegenadupomoxak.pdfIn PDF document text
- http://petra-koparki.pl/Upload/file/59734970284.pdfIn PDF document text
- http://shoreluxurylimos.com/userfiles/files/waxolosojojitukid.pdfIn PDF document text
- https://canionglobal.com/FCKeditor/file/migaserojevewelejujare.pdfIn PDF document text
- http://shahgrp.com/uploads/ligiwesu.pdfIn PDF document text
- https://btsis.com/upload/ckfinder/files/gabaresunivemonajizomuj.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/56121802226.pdfIn PDF document text
- https://movimientofamiliadejesus.com/images/uploaded/file/85652313348.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/76304599920.pdfIn PDF document text
- https://ssmavidiyar.com/public/content-images/files/kofufadeludogigive.pdfIn PDF document text
- http://disonde.com/filespath/files/20210913123239.pdfIn PDF document text
- http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/48719169756.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_off000108d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D6 | 18312 bytes |
SHA-256: 8e7fb0bf2e7cf25c1f47d2249d0e300aec32c905fa583cb3b7d7e5a24f3349fe |
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font_01_sfnt_off000137c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137C7 | 10804 bytes |
SHA-256: 89f3dc274b8c2f67bce05056ac2bc6b7bba69f8f0e32f2783af0c67ce0241b14 |
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font_02_sfnt_off000150b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150B2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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