General

  • Target
    Mercurial.exe
  • Size 3.2MB
  • Sample260809-w5564abq6v
  • SHA256 890fd59af3370e2ce12e0d11916d1ad4ee9b9c267c434347dbed11e9572e8645
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • mercurialgrabber

C2
  • https://discord.com/api/webhooks/1536073056718561400/JyR5wGgqk76z6YahKDeya4Rm4WIcEuMwCf5bAaODRkqiJpjTaHAhyZAMCY2IYpfPvoom

Targets

    • Target
      Mercurial.exe
    • Size 3.2MB
    • SHA256 890fd59af3370e2ce12e0d11916d1ad4ee9b9c267c434347dbed11e9572e8645
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: 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

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads user/profile data of web browsers

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

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

    • 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.

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

MITRE ATT&CK Enterprise v16

Tasks