An Investigative Study of Cryptocurrency Abuses in the Dark Web
Cybercriminal Minds: An investigative study of cryptocurrency abuses in the Dark Web Seunghyeon Leeyz Changhoon Yoonz Heedo Kangy Yeonkeun Kimy Yongdae Kimy Dongsu Hany Sooel Sony Seungwon Shinyz yKAIST zS2W LAB Inc. {seunghyeon, kangheedo, yeonk, yongdaek, dhan.ee, sl.son, claude}@kaist.ac.kr {cy}@s2wlab.com Abstract—The Dark Web is notorious for being a major known as one of the major drug trading sites [13], [22], and distribution channel of harmful content as well as unlawful goods. WannaCry malware, one of the most notorious ransomware, Perpetrators have also used cryptocurrencies to conduct illicit has actively used the Dark Web to operate C&C servers [50]. financial transactions while hiding their identities. The limited Cryptocurrency also presents a similar situation. Apart from coverage and outdated data of the Dark Web in previous studies a centralized server, cryptocurrencies (e.g., Bitcoin [58] and motivated us to conduct an in-depth investigative study to under- Ethereum [72]) enable people to conduct peer-to-peer trades stand how perpetrators abuse cryptocurrencies in the Dark Web. We designed and implemented MFScope, a new framework which without central authorities, and thus it is hard to identify collects Dark Web data, extracts cryptocurrency information, and trading peers. analyzes their usage characteristics on the Dark Web. Specifically, Similar to the case of the Dark Web, cryptocurrencies MFScope collected more than 27 million dark webpages and also provide benefits to our society in that they can redesign extracted around 10 million unique cryptocurrency addresses for Bitcoin, Ethereum, and Monero. It then classified their usages to financial trading mechanisms and thus motivate new business identify trades of illicit goods and traced cryptocurrency money models, but are also adopted in financial crimes (e.g., money flows, to reveal black money operations on the Dark Web.
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