`0x8a7c8497991dea66910e70979a5961aee347ff50`

0x8a7c8497991dea66910e70979a5961aee347ff50 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.

C2 host	Transaction	Verdict	Registered	First written	Last written
`fsecure.centralus.cloudapp.azure.com`	Etherscan	Malicious		2026-09-30	2026-09-30
`tranzed.org`	Etherscan	Malicious	2026-04-21	2026-04-25	2026-04-25
`jariosos.com`	Etherscan	Malicious	2025-12-17	2025-12-17	2025-12-17

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.

Date	Transaction	Sender	Value written
2026-09-30	`0x7fdc7dd6369c…`	`0xea4337aa8349…`	`https://fsecure.centralus.cloudapp.azure.com`
2026-09-30	`0x0d3b65049e07…`	`0xea4337aa8349…`	`https://fsecure.centralus.cloudapp.azure.com`
2026-04-25	`0xe2b85a5a2ec3…`	`0xea4337aa8349…`	`https://tranzed.org`
2025-12-17	`0xbc54b12006a1…`	`0xea4337aa8349…`	`https://jariosos.com`

smart contract address EtherHiding / UNC5342DPRK (cluster unattributed) CURATED

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

Source

As printed:

0x8a7c8497991dea66910e70979a5961aee347ff50

Notes:

Ethereum contract that EtherRAT reads to find its command-and-control server, listed in Atos's appendix as created 2025-12-17 with 1 setString call 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(0xea4337aa83496f0b91cdcdd8bf2734df9eef1774) 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.

Related indicators

Cited by the same report: EtherRAT-appendixes (IoCs/wallets_and_contracts.csv)

Atos Threat Research Center lists 96 other indicators in this source. 12 are shown, chosen across types.

All 97 indicators from this source