Overview

overview

10

Static

static

10

LegionLocker.exe

windows7_x64

9

LegionLocker.exe

windows10-2004_x64

10

Sharing

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General

  • Target
    LegionLocker.exe
  • Size 6.6MB
  • Sample220208-qpljvsgha2
  • SHA256 22b1a6c34e47c23083fc1d2e3d01bc9dbd3fd4429e13aad6797ad41313447708
  • MD5 SHA1 SHA512
Score
10/10
legionlockerevasionransomwarethemidatrojan

Malware Config

Targets

    • Target
      LegionLocker.exe
    • Size 6.6MB
    • SHA256 22b1a6c34e47c23083fc1d2e3d01bc9dbd3fd4429e13aad6797ad41313447708
    • MD5 SHA1 SHA512
    Score
    10/10
    evasionransomwarethemidatrojan

    • Suspicious use of NtCreateProcessExOtherParentProcess

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

      evasion

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • 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.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops desktop.ini file(s)

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks