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0x277852e1c349b03c79e348018a8391bd21c412e8

0x277852e1c349b03c79e348018a8391bd21c412e8 is a smart contract address that one published source reports in connection with EtherHiding / UNC5342 and unclustered DPRK activity, which public reporting attributes to North Korea (DPRK). It is cited here from Atos Threat Research Center. The report is dated 2026-04-14.

On-chain links

C2 hosts this address pointed malware at, newest first. Dates are when the value was written on-chain, and Transaction opens the one that first wrote it; a row without one is a tie a cited report states. A host whose verdict is decoy was written between real values and is not C2. See the EtherHiding Tracker.

Write transactions

Every transaction that wrote a value to this contract, newest first, as read from Etherscan on 2026-10-20. Values are shown as the operator wrote them; an encrypted one has not been decrypted.

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smart contract address EtherHiding / UNC5342DPRK (cluster unattributed) CURATED

First seen 2026-04-14 · last seen 2026-04-14

Source

• As printed:

  0x277852e1c349b03c79e348018a8391bd21c412e8

  Notes:

  Ethereum contract that EtherRAT reads to find its command-and-control server, listed in Atos's appendix as created 2025-12-13 with 3 setString calls when the appendix was compiled. It stores a mapping from operator wallet to URL: the operator writes the C2 with setString(string) and the implant reads it with getString(address) (selector 0x7d434425). On 2026-10-03 getString(0x6c0bdc011f31715c4ff537aa9c6a8a141f8a6119) against a public Ethereum node returned a URL, confirming the contract has this shape; the stored values are not recorded here because operators park the resolver on well-known domains between sessions. Atos names no actor of its own: it repeats Sysdig's link between EtherRAT and the DPRK Contagious Interview tooling and notes code overlap with a tool eSentire attributed to an Iranian group, so this entry is filed under the unattributed DPRK label.

  EtherRAT-appendixes (IoCs/wallets_and_contracts.csv) — Atos Threat Research Center · published 2026-04-14 · pulled 2026-10-03

Find this indicator in the index, or see every smart contract address this site holds under Smart contract addresses in the browse listing.

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