General

  • Target

    LegionLocker.exe

  • Size

    6.6MB

  • Sample

    220208-qpljvsgha2

  • MD5

    9a72a508fcee3de957167a386f173c44

  • SHA1

    55650582fc704d27cd7d95f971b0ddd13dcd9eaf

  • SHA256

    22b1a6c34e47c23083fc1d2e3d01bc9dbd3fd4429e13aad6797ad41313447708

  • SHA512

    fb8073e5d0c14dbe1780bed15b6a492c0db386acb56b834f56eae9d76cf9872dd95396fd8d6d06048864227fcc90f8cae9d7853169536835a183ea2099994262

Malware Config

Targets

    • Target

      LegionLocker.exe

    • Size

      6.6MB

    • MD5

      9a72a508fcee3de957167a386f173c44

    • SHA1

      55650582fc704d27cd7d95f971b0ddd13dcd9eaf

    • SHA256

      22b1a6c34e47c23083fc1d2e3d01bc9dbd3fd4429e13aad6797ad41313447708

    • SHA512

      fb8073e5d0c14dbe1780bed15b6a492c0db386acb56b834f56eae9d76cf9872dd95396fd8d6d06048864227fcc90f8cae9d7853169536835a183ea2099994262

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks