General

  • Target

    https://cdn.discordapp.com/attachments/887794387793375266/887798335237414912/Synapse_X.exe

  • Sample

    230902-r3fq7sde8w

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/887794472006594630/40jMuLtacrKwzDl4LHqrbDNYJRBU5rsrWfPQj_fKoK9VEct6IcF913EXDwWcGQatPxaJ

Targets

    • Target

      https://cdn.discordapp.com/attachments/887794387793375266/887798335237414912/Synapse_X.exe

    • Mercurial Grabber Stealer

      Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

    • Looks for VirtualBox Guest Additions in registry

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks