MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and configured as link farms, suggests a phishing or malware distribution scheme. The document body is heavily obfuscated, but the heuristics indicate the file's purpose is to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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://oniceh.ru/uplcv?utm_term=marvel+contest+of+champions+apk+inewkhushi PDF link annotation
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/95145290834.pdfIn PDF document text
- http://twilaw.com/files/files/tazowexirejo.pdfIn PDF document text
- http://matrix-corporation.com/upfiles/editor/files/kasisasisufunevumo.pdfIn PDF document text
- http://artiguardia.pl/userfiles/file/taferokeluvipukoxejir.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/d9e4a081726c7090cf1d07115f697d40/wozinudeja.pdfIn PDF document text
- http://montpellier-businessplan.com/mbp/upload/images/images/upload/ckfinder/vugafemugotew.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/84556690895.pdfIn PDF document text
- http://www.startservis.sk/novy/ckfinder/userfiles/files/84220796224.pdfIn PDF document text
- https://egyediajandekotletek.hu/mvc/userfiles/file/fexexoberimukoges.pdfIn PDF document text
- http://www.pes.edu.mn/ckfinder/userfiles/files/mepagikixegiwobivokep.pdfIn PDF document text
- https://ldoris.com/upfile/files/20210908182741.pdfIn PDF document text
- https://desense.eu/uploads/wysiwyg/files/xetilifefejuponebu.pdfIn PDF document text
- http://pnlestari.com/visitbali/image/files/93513854852.pdfIn PDF document text
- http://kazuma.ru/ckfinder/userfiles/files/sanot.pdfIn PDF document text
- http://hrzservices.com/uploadfiles/file/wewip.pdfIn PDF document text
- http://spalovnachemolak.sk/userfiles/file/jasajanezidukudaserape.pdfIn PDF document text
- http://goldcoil.com/uploadfiles/files/patewoxedijuli.pdfIn PDF document text
- http://donghobaoan.com/uploads/files/surugogeludovevunivosukos.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16145b055ab961---88931899065.pdfIn PDF document text
- http://bxbrdh.marketsearching.com/upload/files/tevuvosuv.pdfIn PDF document text
- https://noithatkuongthinh.com/uploads/files/fozuwufupuvuri.pdfIn PDF document text
- http://csc0851.com/userfiles/file/20210918060739_d682jg.pdfIn PDF document text
- http://www.eau-msu.ru/ckfinder/userfiles/files/68986818499.pdfIn PDF document text
- http://oodow.cn/upload/file/210908013540076777nb2t6fslvyxw.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_off0000d2bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2BC | 17388 bytes |
SHA-256: b3e303d1b21c30e068cd4d666bf02cd6d13b8bc6b28e79dee24f34c472e2b3ce |
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font_01_sfnt_off0000ffe6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE6 | 11080 bytes |
SHA-256: 2851c0a25d37d71b9ec2f73afc9095d04f4525f10563eff27aba910e547f19bd |
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font_02_sfnt_off0001199d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1199D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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