MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users. Heuristics indicate this is a link farm PDF on disposable hosting, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it as malicious. The primary attack pattern involves luring users to malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.8091
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://pistant.ru/uplcv?utm_term=introduction+to+the+design+and+analysis+of+algorithms+solutions PDF link annotation
- https://zahrek.com/userfiles/file/pikusebugo.pdfIn PDF document text
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365ddc1e575---89733015424.pdfIn PDF document text
- http://jmyhship.com/uploadfile/files/nofemunelizunujapabime.pdfIn PDF document text
- http://hotechike.com/files/files/zovogaperozujuwa.pdfIn PDF document text
- http://e-skala.pl/userfiles/file/dulumufodilemezexitefune.pdfIn PDF document text
- https://totspotdaynursery.co.uk/ckfinder/userfiles/files/zegufewir.pdfIn PDF document text
- http://francescasciortino.it/userfiles/files/fapiredawojasovemut.pdfIn PDF document text
- http://kedehg.com/ckfinder/userfiles/files/1360943111.pdfIn PDF document text
- http://ecovn.vn/uploads/news_file/54531705376.pdfIn PDF document text
- http://kutscher-customs.de/gfx/userfiles/files/diparabumaruxor.pdfIn PDF document text
- https://farmaciasacoor.com/site/upload/file/94370672222.pdfIn PDF document text
- http://ortopediaszombathely.hu/editor_up/94625111814.pdfIn PDF document text
- http://klenderbio.com/upload/files/xesopuzujuzixiwiwiz.pdfIn PDF document text
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zugirubetejakotukiramivir.pdfIn PDF document text
- https://mkserwis.pl/userfiles/file/21103041099.pdfIn PDF document text
- https://cliniquemyo.com/userfiles/file/45628244029.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/pawerofin.pdfIn PDF document text
- http://www.kigimex.com.vn/ckfinder/userfiles/files/46798749898.pdfIn PDF document text
- http://mirutte.com/newsfiles/files/4282017112.pdfIn PDF document text
- https://classconnbio.com/img-jacson/files/22494635825.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161402191100de---denugufu.pdfIn PDF document text
- http://megaprestige.ru/uploads/files/78777367463.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bef0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEF0 | 11088 bytes |
SHA-256: 6a84495641a6a99f5434157b5f0c3dac77b5562cd55029fdca711ae88ed68539 |
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