MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The heuristic 'SE_BROWSER_INSTALL_LURE' suggests the document's content is designed to prompt the user to install a browser update or extension, a common lure for malware delivery. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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://candientu24h.vn/webroot/img/files/13904605082.pdf In PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210909_9CED7A9D45DEE3B5.pdfIn PDF document text
- http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ginepiruxuke.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135357b63958---zasabapid.pdfIn PDF document text
- http://abwhopewell.com/uploads/files/4876942134.pdfIn PDF document text
- http://nerezove-kuchyne.cz/UserFiles/File/72956082177.pdfIn PDF document text
- http://alfatreyd-mebel.ru/archive/images/file/kavasikikikakanisaxi.pdfIn PDF document text
- http://occahomesearch.com/userfiles/files/88654965086.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.info/upload/files/leveturumoju.pdfIn PDF document text
- http://andlupa.com/userfiles/file/14407678473.pdfIn PDF document text
- http://rasciindia.com/firetech/ckupload/files/49112715530.pdfIn PDF document text
- http://cathyknightwaite.com/ckfinder/userfiles/files/tasaweju.pdfIn PDF document text
- http://cc-loges.com/uploads/file/23021722971.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///82059338125.pdfIn PDF document text
- http://drironcat.com/images/file/tazagagetujegasotixog.pdfIn PDF document text
- http://tomgiongvip.com/uploads/files/file/12900846278.pdfIn PDF document text
- http://net-marketing.hu/images/files/doradudexatonuxorasuri.pdfIn PDF document text
- https://marbeyoyun.com/calisma2/files/uploads/39436874170.pdfIn PDF document text
- http://on-video.com/movies/movie_data/file/27736254750.pdfIn PDF document text
- http://bloodfaces.de/attachment/file/radepez.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/63852870c75187078a001644c3b887a7/sisusitejifudoxuximiwewe.pdfIn PDF document text
- https://koncnc.com/genelresimler/file/negawuparutagabedalejolid.pdfIn PDF document text
- http://ucg-eg.com/userfiles/file/lejupe.pdfIn PDF document text
- http://mobil-tech.com/files/83686260607.pdfIn PDF document text
- http://veewood.com/file_media/file_image/file/jobezale.pdfIn PDF document text
- http://geologicatoscana.eu/userfiles/files/88499964210.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=chromecast+pc+to+android+tvPDF 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_off0000b7a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7A3 | 16544 bytes |
SHA-256: f1ef5a820f0b250bdb4a1279d99b8c6a25960e9d85695fd585b043c85924827c |
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font_01_sfnt_off0000e253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE253 | 10828 bytes |
SHA-256: 91de91037297eabf725be1fa2ee39012c155ad038e071c172f1d202f456612d4 |
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font_02_sfnt_off0000fb33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB33 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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