MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The presence of an embedded JavaScript stream (T1059.007) indicates potential for malicious code execution. Numerous external URIs, many pointing to PDF files on unknown domains, suggest a link farm or redirection mechanism, likely part of a phishing campaign (T1566.001). The document body is heavily obfuscated and unreadable, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://poongdung.com/FileData/ckfinder/files/20210910_B580ECB02D3691FF.pdf In PDF document text
- http://tichdiem.surecare.vn/uploads/userfiles/file/46186340141.pdfIn PDF document text
- http://tagsu.com/attachments/fckattachments/file/27783210697.pdfIn PDF document text
- https://people11people.com/uploads/File/misojepifalewutujobo.pdfIn PDF document text
- https://cardolf.ro/files/47015919986.pdfIn PDF document text
- http://copperscrap.wasteequipment.net/ckfinder/userfiles/files/48819690188.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/sozomawozoveluforekugupo.pdfIn PDF document text
- https://otoform.com/upload/ckfinder/files/pesowof.pdfIn PDF document text
- http://nadafashionbelt.com/Uploads/file/49304684684.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138a5b9ab168---45345072166.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/46707586866.pdfIn PDF document text
- http://kreativitaet-stadlhofer.at/global/images/userfiles/file/55824501461.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613081a4cdc9e---10006878438.pdfIn PDF document text
- http://vipnovini.bg/root/f/uploads/files/40907730960.pdfIn PDF document text
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/14805462997.pdfIn PDF document text
- http://news-hk.net/uploadfile/file///borate.pdfIn PDF document text
- http://esistore.be/userfiles/file/xikarixupogojimulewaf.pdfIn PDF document text
- https://www.aukuras.org/ckfinder/userfiles/files/21884858968.pdfIn PDF document text
- http://sklenicky-obchod.cz/web/admin/fckeditor/userfiles/file/67017584020.pdfIn PDF document text
- http://flapboxes.com/userfiles/files/46804038628.pdfIn PDF document text
- http://sbcnepal.com/images/file/66630759769.pdfIn PDF document text
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/54540577864.pdfIn PDF document text
- http://pagyesa.org/userfiles/file/20210911123812.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=car+traffic+mod+apkPDF 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_off0000f008.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF008 | 17592 bytes |
SHA-256: e37b05898db4ec1a3371ec9066361ec4f624a5319da4b5f96a995feea5024d30 |
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font_01_sfnt_off00011dd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DD3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000135ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135EA | 10456 bytes |
SHA-256: 9514f6d4622ccd982a15b9c39512e99ea1766b6ce0c4ddceb7ed2edd81bf6d26 |
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