MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to disposable domains, which is characteristic of phishing or malware distribution campaigns. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 4
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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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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://ambrose.edu/sites/default/files/webform/kubuxodadiwozubak.pdf
- https://aboss.by/sites/default/files/webform/vobefoxejajizagosoberob.pdf
- https://www.dgs-interparts.be/sites/default/files/42042694998.pdf
- http://www.guninetwork.org/system/files/webform/heirri_proposals/74543186253.pdf
- https://ambrose.edu/sites/default/files/webform/zateguzafafidefezibexe.pdf
- http://www.guninetwork.org/system/files/webform/heirri_proposals/rarapenebeku.pdf
- http://www.pacificsportfraservalley.com/sites/default/files/webform/pulipalukegibivep.pdf
- https://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/vawutudujenopudup.pdf
- https://vectorcorp.net/sites/default/files/webform/resume/sabaw.pdf
- https://grossenbacher.co.nz/en/system/files/avoidance-training-certificates/tatemomolefifepa.pdf
- http://pilgrimland.com/sites/default/files/webform/resume-uploads/69774832497.pdf
- http://cicatsalud.com/html/sites/default/files/webform/86929885116.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=learning+python+o%2527reilly+amazon
- https://gradfutures.princeton.edu/system/files/webform/25860956451.pdf
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/kozavexol.pdf
- https://community.princeton.edu/system/files/webform/13590028771.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6c4.binda00a2ccadfeb1e282bb084447086830188dda35d4f31afcdadd48daf7a88003 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6C4 | 5184 bytes |
font_01_sfnt_off0000e855.binad98690f98ecd6e2d952867aa37f7ff10ae04092b33a8d8f74948e54f9a228cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE855 | 9512 bytes |
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