MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous embedded links, many pointing to potentially disposable domains, suggests a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards an attempt to redirect users to external, untrusted resources.
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://boyanbolyarski.com/userfiles/file/muzasonibiverakusalarek.pdf In PDF document text
- https://laptopserwis.com/app/webroot/media/files/43252936511.pdfIn PDF document text
- http://www.psoealora.es/ckfinder/userfiles/files/fopirelinevubalumogejufi.pdfIn PDF document text
- https://geneticapanama.com/userfiles/file/nojenoxakizuzamutorobudos.pdfIn PDF document text
- http://baodieptailor.com/uploads/2021-09-28/images/files/senipevaxamimawiz.pdfIn PDF document text
- https://indicaperu.com/userfiles/file/kunumotekunaxesa.pdfIn PDF document text
- https://netlandschool.cl/files/3177932701.pdfIn PDF document text
- http://centromp.it/userfiles/files/28248605075.pdfIn PDF document text
- http://riccaassociati.eu/userfiles/files/matasewajagoz.pdfIn PDF document text
- https://shieldtech.cz/ckfinder/userfiles/files/61080113639.pdfIn PDF document text
- http://dongamold.com/fckeditor/upload_files/file/fedilelitoximegiwit.pdfIn PDF document text
- https://everywheregenes.com/uploadfile/qu26_qu106_com/files/simalenekomewasuwire.pdfIn PDF document text
- http://poptheme.cn/uploadfile/files/20211007_131910.pdfIn PDF document text
- http://fu-xin.tw/uploads/files/202109050651201707.pdfIn PDF document text
- http://uro-medical.pl/zdjecia/fotki/file/31346622150.pdfIn PDF document text
- http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/6457599043.pdfIn PDF document text
- http://cplust.com/upload/serback/files/20210923225534.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/74692571496.pdfIn PDF document text
- https://gdwtechnology.com/fckeditor/file/In PDF document text
- http://kup-vino.cz/web/ckfinder/userfiles/files/kasefinax.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161494507072b0---49809924160.pdfIn PDF document text
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/fb8439a1738043dd6071cd98e8b4f59b/walulurilo.pdfIn PDF document text
- http://barefoot.pl/userfiles/file/56534757593.pdfIn PDF document text
- http://gerastar.com/userfiles/file/teporigagawig.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/23D8k0Ec_6w/uplcv?utm_term=stage+before+butterflyPDF 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_off0000d6dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6DC | 10456 bytes |
SHA-256: a929b3a81b7fc99e41a379f77a1a724301664d839f68c0f84584333850089e5a |
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font_01_sfnt_off0000eece.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEECE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106E0 | 16528 bytes |
SHA-256: b3eadde9e2304c3174627916fa78befed1e4658d56b5e193d1f901cc67f54cbe |
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