Malware Insights
The sample was classified as malicious by an ML model and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which are hosted on seemingly legitimate domains but point to PDF files, suggesting a link farm or redirection tactic. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic further supports this, indicating a pattern of using multiple domains for obfuscation or to evade detection. While no scripts were explicitly extracted, the presence of embedded URLs and the overall heuristic firings strongly suggest the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.8124
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.blplegal.com/sites/default/files/webform/piselusani.pdf
- https://ambrose.edu/sites/default/files/webform/11364316539.pdf
- https://ambrose.edu/sites/default/files/webform/fabifuturofutip.pdf
- https://www.enwidth.com/sites/default/files/webform/resumes/60015669747.pdf
- http://cicatsalud.com/html/sites/default/files/webform/kizosilubim.pdf
- http://www.sumnercountyhospital.org/sites/default/files/webform/72664382884.pdf
- https://www.mothercare.ro/sites/default/files/webform/resumes/tizagoge.pdf
- http://portal-mysigma.com/system/files/student-proof/wofofokarawivuboniju.pdf
- http://www.grotekeukens.be/sites/default/files/webform/gmawards2018/jebumimebugamoto.pdf
- http://klm3fg.grhosting.cz/sites/default/files/webform/files/56601188302.pdf
- https://www.a1touchsolution.nl/sites/default/files/larigujumikanezazezogiwi.pdf
- https://www.telluridescience.org/sites/default/files/tstc-applications/pagasumoxozodaxatukaliwus.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=mod+the+gungeon+console+commands
- https://community.princeton.edu/system/files/webform/kabajizonen.pdf
- https://ec.europa.eu/eip/agriculture/sites/default/files/webform/56905881998.pdf
- https://lib.asu.edu/system/files/webform/nexeginexepor.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d1f9.bine3fbf19b871098950466ae9096afac174be65d8a866aa301f8718e5d54a94cd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1F9 | 5096 bytes |
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