Overview

overview

10

Static

static

10

LegionLocker.exe

windows7_x64

10

LegionLocker.exe

windows10-2004_x64

10

Sharing

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General

  • Target
    9e3e436d4345c5b6f20bc060d766a7ee0c3ea8c4aebee80d0cfe3481515961a1
  • Size 3.2MB
  • Sample220206-2ebgpacdhn
  • SHA256 9e3e436d4345c5b6f20bc060d766a7ee0c3ea8c4aebee80d0cfe3481515961a1
  • MD5 SHA1 SHA512
Score
10/10
legionlockerevasionransomwarethemidatrojan

Malware Config

Targets

    • Target
      LegionLocker.bin
    • Size 3.4MB
    • SHA256 9d13fde85da13d3c9533ace39fdfb71c95419f002c946265e6d12030890d8b9d
    • MD5 SHA1 SHA512
    Score
    10/10
    legionlockerevasionransomwarethemidatrojan

    • Detected LegionLocker ransomware

      Sample contains strings associated with the LegionLocker family.

      ransomware

    • LegionLocker

      Ransomware family active in 2021.

      ransomwarelegionlocker

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

      evasion

    • Executes dropped EXE

    • 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.

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks