MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The presence of embedded JavaScript and a large number of external links, many pointing to PDF files on unknown domains, strongly suggests a phishing or malware distribution attempt. The document body was unreadable, but the heuristics indicate a link farm strategy, likely to obscure the ultimate malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://rainbowfurnitures.com/files/files/gexesuveg.pdf In PDF document text
- https://sieuviet.net/webroot/img/files/21964149933.pdfIn PDF document text
- http://chanhungcorp.com/images/uploads/files/64492733005.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/72115055564.pdfIn PDF document text
- http://snp-ent.com/files/fckeditor/file/3372322686132999e8b731.pdfIn PDF document text
- http://www.smartlandgroup.com/ckfinder/userfiles/files/49797169434.pdfIn PDF document text
- http://www.petercar0937494634.com/upload/img/files/vavumoxita.pdfIn PDF document text
- http://robotsuk.com/luckingbros.co.uk/userfiles/files/jomogobimisuboto.pdfIn PDF document text
- https://hfbee.tw/upload/ckfinder_temp/files/20210905073430.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/15166748540.pdfIn PDF document text
- http://hoachathoanggia.com/userfiles/file/miranolonubof.pdfIn PDF document text
- https://magiccat.pro/ckfinder/userfiles/files/wetidajotav.pdfIn PDF document text
- https://trexanh.net/upload/files/50181321474.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/77996094617.pdfIn PDF document text
- https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/nagivotu.pdfIn PDF document text
- http://rosg.net/sa_upload/userfiles/file/20210901152304.pdfIn PDF document text
- http://bamor.org/userfiles/file/48417951937.pdfIn PDF document text
- https://pointwebhost.com/calisma2/files/uploads/86658280728.pdfIn PDF document text
- https://ntpuvoice.com/ckfinder/userfiles/files/nidaxuzapobanu.pdfIn PDF document text
- http://npi-management.com/ressource/site-image/files/xikinotobapekajodigedu.pdfIn PDF document text
- http://nedirajtebosnu.net/userfiles/file/tapepotibakefu.pdfIn PDF document text
- http://myrbacken.se/login/ckfinder/userfiles/files/xilinexuvokofu.pdfIn PDF document text
- https://weekendtripskolkata.com/userfiles/file/73843791571.pdfIn PDF document text
- http://geodez.com/pliki/file/52882504542.pdfIn PDF document text
- http://sirinthepgroup.com/userfiles/file/filek.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/33994279608.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612faa5f6baa0---nutixev.pdfIn PDF document text
- http://thrifthelp.com/flash/thrifthelp.com/file/46079267540.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=redmi+9+prime+settings+menuPDF 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_off0000d844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD844 | 17980 bytes |
SHA-256: de1986f6acb0df57f27c34222b80c524b71e59eeb0902f3bf4e05dfa5cf4e3ce |
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font_01_sfnt_off00010702.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10702 | 10720 bytes |
SHA-256: 7246a00fd9d6db3a24e46d6a5e05a80e872d31449f00e9a4ae3d0bef68fa621a |
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font_02_sfnt_off00011f6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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