MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous external URIs, including one pointing to 'pistant.ru', suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=midsomer+tainted+fruit PDF link annotation
- http://hoaiduc.edu.vn/ckfinder/userfiles/files/37695365611.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353b136e3c4---4776287874.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/muwokuvopojoduzewo.pdfIn PDF document text
- http://dfzh.jmdftour.com/fckeditor/userimages/file/voweralajotikovomo.pdfIn PDF document text
- https://bimore.vn/webroot/img/files/4907681686.pdfIn PDF document text
- http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nibaramuwalo.pdfIn PDF document text
- https://amursvoidom.ru/media/files/45412523520.pdfIn PDF document text
- http://quiltingacademy.net/fckeditor/userfiles/file/14150231317.pdfIn PDF document text
- http://reelproductionshd.com/userfiles/file/99435187655.pdfIn PDF document text
- https://ocw.tw/uploads/files/23580467974.pdfIn PDF document text
- http://ayhancevik.com/images_upload/files/kanuta.pdfIn PDF document text
- http://xaydunganphubacninh.com/webroot/img/files/mobomiwapujemiwidoxuxude.pdfIn PDF document text
- http://glassick.com/userfiles/file/kisugo.pdfIn PDF document text
- http://kiuanai.com/userfiles/file/pavutet.pdfIn PDF document text
- http://abbwingslynnhaven.com/uploads/files/voxekudibedotuzebukum.pdfIn PDF document text
- http://hanasushimenifee.com/uploads/files/rizudisumozuselugobewubet.pdfIn PDF document text
- http://bkmarine.net/ckfinder/userfiles/files/1630856807.pdfIn PDF document text
- https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/kewivinazomilol.pdfIn PDF document text
- http://n-production.com/upload/fckeditor/file/30505556312.pdfIn PDF document text
- http://gianniarnaudo.com/userfiles/files/lokuxebozidewikojebe.pdfIn PDF document text
- http://toonesk.com/upload/61092681226.pdfIn PDF document text
- http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/xufimozizesozupokevivuka.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/bizijizebu.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210907_235129.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_off0000d8be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BE | 10560 bytes |
SHA-256: 4ec4789b100eeb2697e43a6a178c927ed6c92505e46e448d83392ac0e540517d |
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font_01_sfnt_off0000f0d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000108e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E4 | 21604 bytes |
SHA-256: a0aa850065d38f9c720db4e018540c0736faef01d8cba3b7f5a8d864f74bf3a0 |
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