PDF malware analysis — malicious · 56c1c2db1009ed69

MALICIOUS

PDF

62.5 KB Created: 2021-09-09 07:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: a7a93b06fefd1c9184e3ac9ac5b8e98f SHA-1: ac63a469ad84e321f90f7c906789111c6bc42ad8 SHA-256: 56c1c2db1009ed6906da41ea3f55d0282bae2bf0c9aad4de41ea046a52d562c6

132 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains embedded JavaScript and numerous external URIs pointing to potentially malicious domains, suggesting it's designed to redirect users to phishing sites or download further malware. The PDF's structure and the presence of many links on disposable hosting indicate a link farm or redirection tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.8923

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://crewmak.ru/uplcv?utm_term=basic+grammar+in+use+download
- http://etkenkalip.com/files/nuvobisukozogu.pdf
- http://www.szphotar.com/admin/img/files/pejanipewavekakowe.pdf
- http://songpinhao.com/userfiles/files/pudevavebixafido.pdf
- http://dealershop.es/userfiles/file/49692111623.pdf
- http://envigest.cz/upload/file/73808271856.pdf
- https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/46731622054.pdf
- http://kingsap.com/file_media/file_image/file/ritoxitegipewoniguwag.pdf
- http://mylivediamondinventory.com/uploads/files/lavepagok.pdf
- http://arniestribu.com/campannas/file/89126529417.pdf
- https://atlas-consulting.ro/fckeditor/fisiere/file/tevavujevasadaruvejijipav.pdf
- https://inoxquochoang.com/app/webroot/files/images/pages/files/43317752901.pdf
- https://bkairconditioner.cloud4demo.com/uploads/files/32450265952.pdf
- https://riwg.in/userfiles/file/66612926459.pdf
- https://www.serwkom.pl/plugins/ckfinder/userfiles/files/tutigutus.pdf
- https://praktijk.zorglink.nl/ckfinder/userfiles/files/42186918419.pdf
- http://ajej.pretty-match.com/upload/files/54275930027.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138c40aada26---90320083587.pdf
- http://lammermoor.net/imagenes/file/79896466300.pdf
- http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/nepovavetijipusitonatuna.pdf
- https://ashasuchikala.com/ckfinder/userfiles/files/90947255435.pdf
- http://tufaghanafc.com/js/ckfinder/userfiles/files/timim.pdf
- http://hanauhrova.cz/files/fugotogaloref.pdf
- https://anhhuynoithat.com/asset/files/vitapefig.pdf
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/sodijobetifoxok.pdf
- https://i-try.tw/upfile/files/2021/09/06/42518932666.pdf

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