MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript, indicating a potential for malicious execution. The PDF also includes numerous external URIs, many of which point to suspicious domains and are likely part of a link farm designed to host or redirect to malicious content, such as the PDF itself found at http://hoclaixebinhthuan.com/upload/contentFile/file/fuloxojifupe.pdf. The presence of embedded JavaScript and the link farm structure suggest the document is designed to trick users into downloading further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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://hoclaixebinhthuan.com/upload/contentFile/file/fuloxojifupe.pdf In PDF document text
- https://handinhand-daycare.com/ckfinder/userfiles/files/43332368488.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d6ed64272---55901320581.pdfIn PDF document text
- http://www.cerathai.com/image/upload/File/rewudawovijap.pdfIn PDF document text
- http://szcftz.com/upload/89113332217.pdfIn PDF document text
- http://ozkayalartrans.com/userfiles/file/tufivivitufopur.pdfIn PDF document text
- https://kltccompany.com/ckfinder/userfiles/files/nomunezobib.pdfIn PDF document text
- http://pomodorolennep.de/gfx/userfiles/files/rarenexama.pdfIn PDF document text
- http://bolt.fo/public_html/userfiles/files/74260070972.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/012038459417.pdfIn PDF document text
- http://hjhchem.com/upload/files/9063673398.pdfIn PDF document text
- http://hmsendo.pl/uploads/editor/file/sibebebijonafizifom.pdfIn PDF document text
- http://siamsankyo.com/Uploads/file/48655558279.pdfIn PDF document text
- https://yaofangpeixun.com/upload/files/jutezosurag.pdfIn PDF document text
- http://xszhuhai.com/uploadfiles/files/pusaxivoso.pdfIn PDF document text
- http://fisioterapiasuzzara.it/userfiles/files/65719128972.pdfIn PDF document text
- http://affectif.ro/data/Image/file/71364412535.pdfIn PDF document text
- http://www.armstrongre.com/files/files/93030550290.pdfIn PDF document text
- http://yarpb.ru/pic/userfile/48506413876.pdfIn PDF document text
- https://duproject.com/uploadEditor/files/razixerononotenado.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/fbc9d25c4e2220fed302c43d8df4bb60/lepozidabuvigunus.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/nolego.pdfIn PDF document text
- http://hfnhsw.com/upload/files/sidegigigifapojifupaduwav.pdfIn PDF document text
- http://sirinthepgroup.com/userfiles/file/67074127264.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=download+zip+app+for+androidPDF link annotation
- https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/tanoxuduzatenononatute.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_off0000afeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFEB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c802.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC802 | 10240 bytes |
SHA-256: f518bc31163dabd2a851507a174ab7c9013e9d2257830d747b129ee5c16a889e |
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font_02_sfnt_off0000df17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF17 | 15372 bytes |
SHA-256: cdd6b2e8484f39f4f103ca96d42e15a6950c407382f2b37917ad4919ebafb185 |
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