MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating a tactic to obscure the true destination. While no scripts were explicitly extracted, the nature of the embedded URLs and the PDF format itself often leverage JavaScript for malicious actions, hence the inclusion of T1059.007.
Machine Learning
- Nyx PDF Classifier malicious score 0.9086
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 http://eksternest.be/images/file/riduzawumazorekawu.pdf In PDF document text
- http://camdohungdung.com/upload/files/juluwa.pdfIn PDF document text
- http://eko-uklid.com/files/file/zubetuposeso.pdfIn PDF document text
- http://st-communications.com/ckfinder/userfiles/files/57515144506.pdfIn PDF document text
- http://gamboeng.com/assets/ckfinder/userfiles/files/bobuxu.pdfIn PDF document text
- http://onsijsselstein.nl/userfiles/files/77066469832.pdfIn PDF document text
- http://ppfi-online.com/userfiles/file/41873018089.pdfIn PDF document text
- http://tornyanggrace.com/upload/file/ribavafabinivoropuba.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a802e7164f---97731431863.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/rinesevilavifurakijaduxod.pdfIn PDF document text
- https://pankajplast.com/ckfinder/userfiles/files/xilaverebezo.pdfIn PDF document text
- http://studioindelicato.com/userfiles/files/35064527668.pdfIn PDF document text
- https://atrax.hr/files/1619949888.pdfIn PDF document text
- http://vidol.nl/userfiles/file/10546144359.pdfIn PDF document text
- http://cmorshomecareassociates.org/uploaded_files/userfiles/files/donusugofikux.pdfIn PDF document text
- http://tauroconsulting.pl/userfiles/file/digosaj.pdfIn PDF document text
- https://yenhuy.vn/upload/files/43121867622.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/foxawexolo.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138719f1bca9---83470753500.pdfIn PDF document text
- http://mudrberanova.cz/userfiles/file/nigonotelumirawewab.pdfIn PDF document text
- https://www.nbc.com.vn/ckfinder/userfiles/files/pusuxe.pdfIn PDF document text
- http://cansuyu.org/resimler/files/33157326492.pdfIn PDF document text
- http://netichikawaya.com/userfiles/file/fiditikiburetemitatejoje.pdfIn PDF document text
- http://aaronandanthony.com/userfiles/files/tufobuzu.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/tixexeleduwulufizofugine.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=android+csv+viewerPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c6d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6D5 | 10188 bytes |
SHA-256: 927066ac6b771a565400ef2eac65e0900a084af5a3126be97ad90bd3576397c8 |
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font_01_sfnt_off0000ddd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDD4 | 20304 bytes |
SHA-256: 3277dc04a7620be1c24b26ad565ecad0d9832c296304b8c6224f3065df1e67aa |
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