General

  • Target
    .
  • Size 147KB
  • Sample240519-sdwa2acd8y
  • SHA256 ed41a9ed133a27f77a8cabe1dafbbdedef7060635b10ad2b5669f13e299ff246
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      .
    • Size 147KB
    • SHA256 ed41a9ed133a27f77a8cabe1dafbbdedef7060635b10ad2b5669f13e299ff246
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks