Overview

overview

8

Static

static

3

Voidstrap.exe

windows10-ltsc_2021-x64

8

Voidstrap.exe

windows11-21h2-x64

8

Sharing

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General

  • Target
    Voidstrap.exe
  • Size 35.6MB
  • Sample261030-sbhbdset3l
  • SHA256 693f56b15b47bb4254a1087a29b059132c1711d85d7c6c98f875caf4fd34ae5f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
defense_evasiondiscoverypersistenceransomware

Malware Config

Targets

    • Target
      Voidstrap.exe
    • Size 35.6MB
    • SHA256 693f56b15b47bb4254a1087a29b059132c1711d85d7c6c98f875caf4fd34ae5f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    defense_evasiondiscoverypersistenceransomware

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks