macOS FlexibleFerret | Further Variants of DPRK Malware Family Unearthed

2025-02-03 Sentinel One

https://www.sentinelone.com/blog/macos-flexibleferret-further-variants-of-dprk-malware-family-unearthed/

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SentinelLABS describes new macOS FlexibleFerret samples tied to the DPRK Contagious Interview campaign, where victims are lured through fake job or developer interactions into installing malware. The versus.pkg installer drops InstallerAlert.app and a malicious zoom binary into /var/tmp, runs a postinstall script, displays a fake damaged-file message, and establishes LaunchAgent persistence as com.zoom.plist. The campaign overlaps with earlier FERRET tooling through ChromeUpdate-style components, Dropbox exfiltration, api.ipify.org public-IP checks, and the zoom.callservice.us C2 domain, while some samples remained outside Apple XProtect coverage at publication time.

Indicators of Compromise

Type Value First Seen Last Seen
DOMAIN api.ipify.org 2019-12-11 2026-05-19
HASH 65b98ddc821212d13e0e64265353725… 2025-02-03 2025-10-28
HASH bd2aa5805b76f272b43a595b3d73e29… 2024-11-07 2025-10-28
URL https://api.dropboxapi.com/oaut… 2023-12-29 2025-09-03
URL https://content.dropboxapi.com/… 2018-09-21 2025-09-03
URL https://api.ipify.org 2025-02-03 2025-08-28
HASH b72653bf747b962c67a5999afbc1d91… 2025-01-05 2025-08-25
HASH 3c4becde20e618efb209f97581e9ab6… 2025-02-03 2025-02-19
HASH 0a49f0a8d0b1e856b7d109229dfee79… 2025-02-03 2025-02-13
HASH 07447cddbcba8554ed2b61b09575c83… 2025-02-03 2025-02-06
HASH 90285836a816c65870232e4afda646a… 2025-02-03 2025-02-06
HASH 55bc2ba393be4e85b5b2dbacdd9db7a… 2025-02-03 2025-02-06
HASH fa35f400c5da0d3ca90b98fe4e05eb2… 2025-02-03 2025-02-06
HASH bc2e4518f46545f37427f7658fa4f09… 2025-02-03 2025-02-06
HASH a405ca23734be209540a37a8d0bcc46… 2025-02-03 2025-02-06
HASH 82254a35777bb52227a4a78f2cb920f… 2025-02-03 2025-02-06
HASH a0c7e0c113ec2501ddae46c91b7a109… 2025-02-03 2025-02-06
HASH 212c3c61994e52762c386ff7e15ee61… 2025-02-03 2025-02-06
HASH 76d54945e80c205fb3436116e357a58… 2025-02-03 2025-02-06
HASH cd6e548b085eaaee31b260489c93208… 2025-02-03 2025-02-06
HASH e12031bc7ac1fa70cb802a508a8c520… 2025-02-03 2025-02-06
HASH c6774961e12c14b91f6673ad47ce44d… 2025-02-03 2025-02-06
HASH 24ffa27530305fd318aad7613f28ca3… 2025-02-03 2025-02-06
HASH 1592890db909272f908e749d1757d27… 2025-02-03 2025-02-06
HASH cf4b9c260b5fba8e82bc08cf4fd1bfc… 2025-02-03 2025-02-06
HASH efe386cab039d1ee89932bcbc4239b3… 2025-02-03 2025-02-06

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