MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a phishing trojan by ClamAV and flagged by an ML classifier. Heuristics indicate it is a link farm with disposable hosting and a callback phishing lure, suggesting it aims to trick users into calling a fraudulent support number. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious intent to redirect users to potentially harmful sites or initiate fraudulent calls.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://irlanc.ru/uplcv?utm_term=how+to+transfer+sms+to+new+phone PDF link annotation
- http://nontaromclinic.com/ckfinder/userfiles/files/zajomaxixelanenujubupu.pdfIn PDF document text
- https://stpm-sa.com/userfiles/file/pipufovelebopefedemuwet.pdfIn PDF document text
- http://evrofurnitura.by/elax-furnitura.ru/uploads/files/66537410482.pdfIn PDF document text
- http://greenmodels.ru/uploads/files/bedavazovawazosevi.pdfIn PDF document text
- http://dvg.asia/ckfinder/uploadfiles/files/78909458776.pdfIn PDF document text
- http://atsrealtyvietnam.com/upload/files/59604263306.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161301b151b3a0---vigom.pdfIn PDF document text
- http://poltinik.ru/userfiles/file/71609338405.pdfIn PDF document text
- https://5a.ro/ckfinder/userfiles/files/44846643009.pdfIn PDF document text
- https://rajaunited.com/contents/files/49506804599.pdfIn PDF document text
- http://www.ecostroyservis.ru/File/1382058810.pdfIn PDF document text
- http://dragonera.cn/admin/userfiles/file/62152004613.pdfIn PDF document text
- http://phanmemerp.vn/attachment/files/3178553058.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9e3870a04---padul.pdfIn PDF document text
- https://champion-osk.pl/userfiles/file/45602423975.pdfIn PDF document text
- https://instalacje-elektryczne.net/ckfinder/userfiles/files/kajufudagulekonipoj.pdfIn PDF document text
- https://mosallaesf.ir/uploads/ck/files/34871760276.pdfIn PDF document text
- https://ddnepal.com/assets/userfiles/files/zojeridagaz.pdfIn PDF document text
- https://globalmediaminds.com/uploads/files/dezizonamuvosaroti.pdfIn PDF document text
- http://ordineveterinarireggioemilia.it/userfiles/files/gavidilixusapakabozamabil.pdfIn PDF document text
- http://charolais-hessen.de/write/userfiles/file/51038820119.pdfIn PDF document text
- http://auto-rad.pl/userfiles/file/39441510283.pdfIn PDF document text
- https://eventpro-kontraktorpameran.com/uploaded/files/75236897942.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_off0000ef0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF0B | 17456 bytes |
SHA-256: ed372b9d39d9bdc8b62485c3b0ffec06c6fb46b723b0aeae0e1f8e0959be6ed2 |
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font_01_sfnt_off00011bd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BD1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000133e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133E8 | 10560 bytes |
SHA-256: 3dc27c9600332f7b6f662ce971013c8f65e8a99b090639128f5ccecf814e911c |
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