MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document that contains numerous embedded URLs, many of which are structured to appear as legitimate file uploads but lead to unknown domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or to serve a second-stage payload. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.7866
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://www.uts.cw/sites/default/files/webform/47116150145.pdf
- http://pilgrimland.com/sites/default/files/webform/resume-uploads/jitebetususi.pdf
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/5308316073.pdf
- http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/84972388600.pdf
- https://www.telluridescience.org/sites/default/files/tstc-applications/fezijorimofilafomifum.pdf
- https://www.mainephilanthropy.org/sites/default/files/guvobirewuge.pdf
- http://cicatsalud.com/html/sites/default/files/webform/mulakipezumaxusilexuvu.pdf
- http://russian-ice-spb.ru/sites/default/files/webform/files/fapulewamekunasu.pdf
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/vewamilobofesiwukor.pdf
- http://russian-ice-spb.ru/sites/default/files/webform/files/77599308563.pdf
- https://www.ofalloncasting.com/sites/default/files/webform/taxebuvokorutupimapo.pdf
- https://aboss.by/sites/default/files/webform/80384466065.pdf
- https://ambrose.edu/sites/default/files/webform/vojowavujelosapol.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=zweiteilige+konnektoren+%25C3%25BCbungen
- https://gradfutures.princeton.edu/system/files/webform/fumegefexuwonadijot.pdf
- https://community.princeton.edu/system/files/webform/4167827641.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cc25.bin4eb1e93131d40b79fe84ab9f6857bc4d84eca5b76f9a07f63a801e11abd13ca1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC25 | 4720 bytes |
font_01_sfnt_off0000dc27.bin9c051374e6eda0056f734b66ce0b7839a73df19215159bd08ebc0a642ab028c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC27 | 10896 bytes |
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