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General

  • Target

    https://www.dropbox.com/scl/fi/5xgphf3srvo005sux8d56/MasterKeyX_Pro.zip?rlkey=ydmy472krtm9tci80mfhpivo6&st=wc5mzc5m&dl=1

  • Sample

    250125-wmdn5awmam

Malware Config

Extracted

Family

vidar

C2

https://t.me/sc1phell

https://steamcommunity.com/profiles/76561199819539662

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Extracted

Family

lumma

C2

https://toppyneedus.biz/api

Targets

    • Target

      https://www.dropbox.com/scl/fi/5xgphf3srvo005sux8d56/MasterKeyX_Pro.zip?rlkey=ydmy472krtm9tci80mfhpivo6&st=wc5mzc5m&dl=1

    • Detect Vidar Stealer

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks installed software on the system

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks