MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating a malicious intent to redirect the user. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam pattern, where the document prompts the user to call a phone number. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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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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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://synerhu.ru/uplcv?utm_term=how+to+transfer+files+from+my+phone+to+my+ps4 PDF link annotation
- http://tcgardening.com/userfiles/file/2021092513050873499.pdfIn PDF document text
- https://www.solucionaesp.com/ckfinder/userfiles/files/meratibo.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/92159280558.pdfIn PDF document text
- http://hoanggiaphatland.com/uploads/image/files/kenumuguwolato.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/gadafodawad.pdfIn PDF document text
- http://araulmor.tel-cor.com/images/library/file/78470012861.pdfIn PDF document text
- http://petukmahaaaraj.com/userfiles/file/jovubevipej.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210913080411782.pdfIn PDF document text
- https://robodom.si/files_vsebine/9287405278.pdfIn PDF document text
- https://digireg.gr/upload/pujofaviwolib.pdfIn PDF document text
- https://elesud.it/img_pagine/file/radidaxirelesekiguxagivub.pdfIn PDF document text
- http://runo34.ru/attachments/file/manexewerolofolaleju.pdfIn PDF document text
- http://sciattella.net/images/file/97016348511.pdfIn PDF document text
- https://studiecarriere.it/uploads/file/maxuketevi.pdfIn PDF document text
- http://riggi.ru/userfiles/file/maxipidosavewudemigaduwif.pdfIn PDF document text
- https://pitbulllocksmith.com/nbloom/fckuploads/file/zugofopajowinopukav.pdfIn PDF document text
- http://lamgi.pl/ckfinder/userfiles/files/71590230751.pdfIn PDF document text
- http://wildpflanzen-planung.de/file/91820291850.pdfIn PDF document text
- https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/mebigevufababadupane.pdfIn PDF document text
- http://poptheme.cn/uploadfile/files/20210916_220025.pdfIn PDF document text
- http://topup-fight.com/ckfinder/userfiles/files/77267345598.pdfIn PDF document text
- https://afritransport.com/app/webroot/files/file/47047084303.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/bopube.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_off0000afdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFDF | 10892 bytes |
SHA-256: 24f660f1c163530930334ad3265249ac0bd8cc58b67bf6ce5bf2c92cbce23321 |
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font_01_sfnt_off0000c8f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e102.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE102 | 14744 bytes |
SHA-256: 2156108001ba191b019ad207383ff4e616153a5e22bdd33ab5aad02ee60a958f |
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