New Mac variant of Lazarus Dacls RAT distributed via Trojanized 2FA app

2020-05-06 Malwarebytes

https://blog.malwarebytes.com/threat-analysis/2020/05/new-mac-variant-of-lazarus-dacls-rat-distributed-via-trojanized-2fa-app/

Malwarebytes analyzed a macOS variant of the Dacls RAT that it associates with Lazarus/Hidden Cobra/APT38 and detects as OSX-DaclsRAT. One observed variant downloaded a payload from loneeaglerecords[.]com into ~/Library/.mina, while related samples shared beaconing command codes with Linux.dacls. The Mac RAT established TLS communications using WolfSSL and encrypted data over SSL with RC4 generated from a hardcoded key. The added Socks plugin acted as a Socks4 proxy between the bot and C2 infrastructure and included a worm-scanning function for subnets on ports 8291 and 8292, showing continued cross-platform tool development.

Indicators of Compromise

Type Value First Seen Last Seen
IPv4 67.43.239.146 2020-05-05 2023-01-18
IPv4 185.62.58.207 2020-05-05 2023-01-18
HASH 899e66ede95686a06394f707dd09b7c… 2020-05-06 2020-07-27
URL https://loneeaglerecords.com/wp… 2020-05-06 2020-07-27
DOMAIN loneeaglerecords.com 2020-05-06 2020-07-27
HASH 216a83e54cac48a75b7e071d0262d98… 2020-05-06 2020-05-06
HASH d3235a29d254d0b73ff8b5445c962cd… 2020-05-06 2020-05-06
HASH 846d8647d27a0d729df40b13a644f3b… 2020-05-06 2020-05-06
IPv4 50.87.144.227 2020-05-06 2020-05-06

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