0xa1f957a901cdfeb603641b8cd8de22d6ef765bc102e1ce50c7494fb19ea1835d
0xa1f957a901cdfeb603641b8cd8de22d6ef765bc102e1ce50c7494fb19ea1835d is a transaction hash
that one published source reports
in connection with EtherHiding / UNC5342 and Contagious Interview activity, which public reporting
attributes to North Korea (DPRK).
It is cited here from Ransom-ISAC.
The report is dated 2025-12-08.
transaction hash EtherHiding / UNC5342Contagious Interview CURATED
Source
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DEV#POPPER.JS RAT VARIATIONS 091025_0xa1f957a901cdfeb603641b8cd8de22d6ef765bc102e1ce50c7494fb19ea1835d_FINAL.txt 383a8da67be2067b37969873a4c76ca0034f9c9d144e2758234e857ae6d57741
BNB Smart Chain transaction whose input field carries an encrypted JavaScript stage that the malware fetches with eth_getTransactionByHash: named in the file name of a deobfuscated DEV#POPPER.JS RAT variant in Ransom-ISAC's part 4 indicator table (091025_0xa1f957a901cdfeb603641b8cd8de22d6ef765bc102e1ce50c7494fb19ea1835d_FINAL.txt), which the post lists among payload transactions from wallet 0x9bc1355344b54dedf3e44296916ed15653844509. Recorded from the cited indicator table; this site has not decrypted the calldata. Ransom-ISAC, which calls the technique Cross-Chain TxDataHiding (XCTDH), says the targeting and operational priorities strongly suggest a DPRK-affiliated actor, and its part 4, written with Crystal Intelligence, reports funding traced to addresses involved in other DPRK thefts. The first part of the series rests on infrastructure and targeting rather than on a named cluster, so this entry carries the Contagious Interview label and no UNC cluster.
Cross-Chain TxDataHiding Crypto Heist: A Very (Very) Chainful Process (Part 4) — Ransom-ISAC
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