MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm with numerous external URIs pointing to disposable hosting, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, but the presence of embedded URLs and the overall structure strongly suggest it's designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.5231
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://chcial.ru/uplcv?utm_term=lack+of+clarity+meaning PDF link annotation
- http://rheumatology.institute/upload/content/file/tewunexogapemuxetotilu.pdfIn PDF document text
- http://metafelix.it/userfiles/files/77538030856.pdfIn PDF document text
- http://czytamzezrozumieniem.pl/userfiles/file/71457917611.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/76240766737.pdfIn PDF document text
- http://netinflux.net/userfiles/file/pipidejuluzaxa.pdfIn PDF document text
- https://locktactyuma.com/userfiles/file/87927225111.pdfIn PDF document text
- https://chiuman-hk.com/images/file/34938589833.pdfIn PDF document text
- http://romento.com/uploaded_files/userfiles/files/25344822135.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161337ea6ef7d2---29976934526.pdfIn PDF document text
- https://harmony-lazienka.pl/Upload/file/6849451474.pdfIn PDF document text
- https://strategieb2b.com/userfiles/file/88460897131.pdfIn PDF document text
- https://mindtrainingsystems.com/userfiles/file/ragebisewiwavexegiketud.pdfIn PDF document text
- https://afmiletisim.afmiletisimajansi.info/resimler/files/sutomisomidivapavedaket.pdfIn PDF document text
- http://leadingedgecorporate.com/user_images/file/najevugik.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/tajiraxap.pdfIn PDF document text
- https://lawrenceyezersky.com/userfiles/file/ginariwiru.pdfIn PDF document text
- http://twgo8.com/uploads/base/files/202109172324423620.pdfIn PDF document text
- https://mertlakustika.cz/images/pages/file/wisekewonafisaz.pdfIn PDF document text
- http://0-50.ru/userfiles/file/1057124991.pdfIn PDF document text
- https://pastijptoto.com/contents/files/napamazarejozojexu.pdfIn PDF document text
- https://turismopontevedra.com/ckfinder/userfiles/files/39332160019.pdfIn PDF document text
- http://nawooelcs.com/upload/userfiles/2021/10/files/211004002515.pdfIn PDF document text
- https://www.vpn-solutions.com.pe/ckfinder/userfiles/files/23990033053.pdfIn PDF document text
- https://tes-sys.com/uploads/ckfinder/files/20210916/16317354981504.pdfIn PDF document text
- 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_off0000bb47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB47 | 19092 bytes |
SHA-256: 8659452e4530251e3a8d76fadf191ac15802a1c799032199f857aa32e7337632 |
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font_01_sfnt_off0000ecfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECFD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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