MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to seemingly legitimate domains but are likely used as part of a link farm or redirection scheme to host malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for link farms, further supporting a malicious intent. No scripts were extracted, but the overall structure and heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.7822
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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/seliruni.pdf In PDF document text
- https://ambrose.edu/sites/default/files/webform/74647609277.pdfIn PDF document text
- https://ambrose.edu/sites/default/files/webform/11364316539.pdfIn PDF document text
- http://pilgrimland.com/sites/default/files/webform/resume-uploads/61975266633.pdfIn PDF document text
- https://www.enwidth.com/sites/default/files/webform/resumes/95374483905.pdfIn PDF document text
- https://ambrose.edu/sites/default/files/webform/85138354947.pdfIn PDF document text
- http://cicatsalud.com/html/sites/default/files/webform/25507329945.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/doxuwekuwazomiloxeri.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=circuit+breaker+pdf+nptelPDF link annotation
- https://lib.asu.edu/system/files/webform/bidemuf.pdfIn PDF document text
- https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/tivajojisepizoni.pdfIn PDF document text
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/86402477901.pdfIn PDF document text
- https://ec.europa.eu/eip/agriculture/sites/default/files/webform/27560642257.pdfIn PDF document text
- https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/68876097481.pdfIn PDF document text
- https://gradfutures.princeton.edu/system/files/webform/48950823745.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d4d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4D0 | 5080 bytes |
SHA-256: e85763d5b9ecae2121302fd78a89a60445b055d9649b129c62a7a0493cb046a4 |
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