General

  • Target
    Euphoria-Install.zip
  • Size 121KB
  • Sample260811-1hvjasdn5v
  • SHA256 07be8ec1a15f4ca3af354ab896ca16099b4e80edb6b7ec193604e091291b442a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Euphoria-Install.zip
    • Size 121KB
    • SHA256 07be8ec1a15f4ca3af354ab896ca16099b4e80edb6b7ec193604e091291b442a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Renames multiple (6110) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops desktop.ini file(s)

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Drops file in System32 directory

    • Target
      VRChat_Data/Plugins/x86_64/steam_api64.dll
    • Size 240KB
    • SHA256 8abf7afe81ff984c546e19ba62437cf6d90791b6811b48d0ce36a58b5f01229b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks