MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to various external URLs, one of which is associated with recording Discord audio. The presence of embedded URLs and a 'download button' lure suggests an attempt to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://pistant.ru/uplcv?utm_term=record+discord+audio PDF link annotation
- https://youkuvpn.com/upload/files/1367015600.pdfIn PDF document text
- http://jcnjl.com/userfiles/files/90786366584.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/76045037129.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/j792l91rdndeho2ufhi9i9gsfu/73844594528.pdfIn PDF document text
- https://happycolaborativo.com/uploads/files/4667326050.pdfIn PDF document text
- http://sportingfoundation.com/uploads/file/gepakutatalivujixaja.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/161454ae3c262d---xibanixabutufawuke.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/34387342353.pdfIn PDF document text
- http://azbuka-d.ru/ckfinder/userfiles/files/24674276426.pdfIn PDF document text
- https://landatur.com/files/galeria/files/65627485382.pdfIn PDF document text
- http://saiprogetti.net/userfiles/files/sojiderefuxiragulabawu.pdfIn PDF document text
- http://baracenter.be/userfiles/file/zixudujogujejipumulajibe.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/24424948691.pdfIn PDF document text
- http://massimobertoarchitetto.com/userfiles/files/8771273586.pdfIn PDF document text
- https://marathonblainville.com/userfiles/files/5094046984.pdfIn PDF document text
- http://hk-keber.de/images/file/vonefekanalowixinobip.pdfIn PDF document text
- http://itaxabc.com/userfiles/file/20210910230745_347822040.pdfIn PDF document text
- https://clubelsendero.com/img_pag/file/nabomonugadoziwapizesago.pdfIn PDF document text
- http://feynburg-uhren.de/uploads/66371212275.pdfIn PDF document text
- https://gloriamus.org/Uploads/userfiles/files/39072628783.pdfIn PDF document text
- http://kondicionery-noginsk.ru/upload_picture/file/kuwuj.pdfIn PDF document text
- http://etcpremium.com/userfiles/files/zafitulubovogeruzegadegop.pdfIn PDF document text
- http://townofwinslowin.com/flash/townofwinslowin.com/file/6348781243.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/kukesazokiferif.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_off0000d62e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD62E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE45 | 10260 bytes |
SHA-256: d18947b5aa685487a4d8e7b868abf57dc9a617915d5be9935efee3d89ec09d8b |
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font_02_sfnt_off00010571.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10571 | 17424 bytes |
SHA-256: ad9eccaf834a7dd10d6d1f8e744598a09cb771345a45dcde7da549a2f7ccb14c |
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