MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was identified as malicious by ClamAV with a critical heuristic firing. It contains numerous embedded URLs, with one specifically noted as part of a link farm on disposable hosting. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather to host links. The presence of external URIs and the link farm heuristic strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3632
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://infrive.ru/uplcv?utm_term=daily+monounsaturated+fat+intake PDF link annotation
- http://foodchemsino.com/d/files/87389941564.pdfIn PDF document text
- http://descanso.verareyes.com/ckfinder/userfiles/files/67423654540.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/27755477312.pdfIn PDF document text
- https://myclubowners.travelenvogue.com/userfiles/files/koviral.pdfIn PDF document text
- https://asken.as/bilder/file/foxawudozipegil.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021092007143382.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/54113343150.pdfIn PDF document text
- http://tecniagua.es/uploads/ckfinder/files/wulaveniniwutakudib.pdfIn PDF document text
- http://delifarm.com/images/file/gojatabo.pdfIn PDF document text
- https://taechoclub.com/FileData/ckfinder/files/20210919_0BD6493B66FA2C71.pdfIn PDF document text
- http://surinmajestic.com/phya/ckfinder/userfiles/files/80610311800.pdfIn PDF document text
- http://marta-galan.com/files/varios/file/6386604190.pdfIn PDF document text
- https://subded.org/userfiles/file/tadosap.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f0ecc17822---85112470024.pdfIn PDF document text
- http://neo-net.info/giganet/files/file/53458217453.pdfIn PDF document text
- https://szemvidito.hu/sfwkr/feltoltesek/Images/Image/dufedewabujojixovagapep.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/53593125852.pdfIn PDF document text
- http://musorcentrum.hu/files/article/file/mudosojonilasawepotaduser.pdfIn PDF document text
- https://pollackmihalyiskola.hu/ckfinder/userfiles/files/dexufujemiropinolawilokuz.pdfIn PDF document text
- http://cmi.nfe.go.th/ckfinder/userfiles/files/kikisafeza.pdfIn PDF document text
- http://myflora888.com/ck_files/files/nubufabaj.pdfIn PDF document text
- http://magogaralbamoble.com/galeria/files/4800080972.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/sotuxokaxepog.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_off0000f38c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ba3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA3 | 10824 bytes |
SHA-256: 006f12aec75c7eaa78c24fdeba88d4e0e30c173e2f1e7284680281763ca1b246 |
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