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General

  • Target

    https://rbxidle.com/rbxidle-installer.exe?__cf_chl_tk=OCpUeNSmM5k1DefE0VxdjEPBW5IDlh3W.Cg9HDKuXVg-1708634756-0.0-4221

  • Sample

    240222-zkeeesfa41

Malware Config

Targets

    • Target

      https://rbxidle.com/rbxidle-installer.exe?__cf_chl_tk=OCpUeNSmM5k1DefE0VxdjEPBW5IDlh3W.Cg9HDKuXVg-1708634756-0.0-4221

    • XMRig Miner payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks