Overview

overview

10

Static

static

3

Main Loader.exe

windows10-ltsc_2021-x64

10

Sharing

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General

  • Target
    Main Loader.exe
  • Size 22.9MB
  • Sample260831-b5bx2atbkc
  • SHA256 ec1d70d4787b7ba851e96f6a70b87019774e186a8fd484ece9a2cfb5954177fb
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasionexecution

Malware Config

Targets

    • Target
      Main Loader.exe
    • Size 22.9MB
    • SHA256 ec1d70d4787b7ba851e96f6a70b87019774e186a8fd484ece9a2cfb5954177fb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionexecution

    • Modifies visibility of file extensions in Explorer

      defense_evasion

    • Modifies visibility of hidden/system files in Explorer

      defense_evasion

    • Looks for VirtualBox Guest Additions in registry

      defense_evasion

    • Looks for VMWare Tools registry key

      defense_evasion

    • Modify Registry: Disable Windows Driver Blocklist

      Disable Windows Driver Blocklist via Registry.

      defense_evasion

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Stops running service(s)

      defense_evasionexecution

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

      execution

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks