Overview

overview

9

Static

static

3

locker.exe

windows10-ltsc_2021-x64

9

Sharing

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General

  • Target
    locker.exe
  • Size 2.9MB
  • Sample261102-s5d6tsvvex
  • SHA256 939a49060e880ac4b3232bc201e1bcf64925e5c2a285c438031dc620ca153344
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryevasionexecutionimpactpersistenceransomware

Malware Config

Targets

    • Target
      locker.exe
    • Size 2.9MB
    • SHA256 939a49060e880ac4b3232bc201e1bcf64925e5c2a285c438031dc620ca153344
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoveryevasionexecutionimpactpersistenceransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (151) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Checks computer location settings

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

    • Enumerates connected drives

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

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

      defense_evasion
    behavioral1

MITRE ATT&CK Enterprise v16

Tasks