MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document body contains a lure related to a popular Korean drama, likely intended to deceive the user. The presence of numerous external URIs, many pointing to disposable or unknown domains, further supports a phishing or malicious content distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.8450
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.dgs-interparts.be/sites/default/files/viwiredozilopuvotudulufez.pdf
- https://www.natsihwa.org.au/sites/default/files/webform/doxuwekuwazomiloxeri.pdf
- https://www.uts.cw/sites/default/files/webform/58994315224.pdf
- https://grossenbacher.co.nz/en/system/files/avoidance-training-certificates/tojawi.pdf
- https://www.blplegal.com/sites/default/files/webform/32112495638.pdf
- http://seiary.com/sites/default/files/webform/rec/47545977947.pdf
- https://architecturaldesigninc.com/sites/default/files/72694480293.pdf
- http://russian-ice-spb.ru/sites/default/files/webform/files/fapulewamekunasu.pdf
- https://vectorcorp.net/sites/default/files/webform/resume/86038084563.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.opentle.org
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=heirs+korean+drama+ep+1+eng+sub+full+episode
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/wutiladerotegedubel.pdf
- https://www.healthdata.org/sites/default/files/resumes/mavesoriv.pdf
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/1901815882.pdf
- https://www.vub.be/sites/vub/files/webform/86005813007.pdf
- https://ec.europa.eu/eip/agriculture/sites/default/files/webform/66140853426.pdf
- http://scripts.sil.org/OFL
- http://www.gnu.org/licenses/gpl.html
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00017c26.bin79a884ec40bbdc96d36774da8c6cb1ee95b4fa5d3636d6c06443f97117aababc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C26 | 35872 bytes |
font_01_sfnt_off0001eb32.bind97d6e73e1a0e9111ed4edb7a1458befeb1eb55f044aae0ac0bd68c80b05630e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EB32 | 5580 bytes |
font_02_sfnt_off0001fe0d.bin83afcf332f86f09280f10cab6375c3f195c3a715cb6d93a85004d270a7e0fba9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FE0D | 9380 bytes |
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