General

  • Target

    BootstrapperV1.23.exe

  • Size

    37.2MB

  • Sample

    241121-zs963aslak

  • MD5

    e9b094de7dbacc45f77d4c85e0c7c6ce

  • SHA1

    2a921a57c92a5db995f89fffa7810d7d98a9318f

  • SHA256

    6e0f5a9ddf9cfc12cdd21e617cdc4af568fd0d829d54c9380b0d8a6ffd833af3

  • SHA512

    ba47a9882da40b6bc862d94d38a9afeed2df0825df13070681b7ab1f5ac1f5d5430de6f27bef7e5af772aa46598eb7c247f700fada83d9557cc15c044e1d7e3f

  • SSDEEP

    393216:BQgHDlanaGBXvDKtz+bhPWES4tiNQPNrIKc4gaPbUAgrO4mgf96l+ZArYsFRl1GD:B3on1HvSzxAMNfFZArYsGMTPv47OZuki

Malware Config

Targets

    • Target

      BootstrapperV1.23.exe

    • Size

      37.2MB

    • MD5

      e9b094de7dbacc45f77d4c85e0c7c6ce

    • SHA1

      2a921a57c92a5db995f89fffa7810d7d98a9318f

    • SHA256

      6e0f5a9ddf9cfc12cdd21e617cdc4af568fd0d829d54c9380b0d8a6ffd833af3

    • SHA512

      ba47a9882da40b6bc862d94d38a9afeed2df0825df13070681b7ab1f5ac1f5d5430de6f27bef7e5af772aa46598eb7c247f700fada83d9557cc15c044e1d7e3f

    • SSDEEP

      393216:BQgHDlanaGBXvDKtz+bhPWES4tiNQPNrIKc4gaPbUAgrO4mgf96l+ZArYsFRl1GD:B3on1HvSzxAMNfFZArYsGMTPv47OZuki

    • UAC bypass

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

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

    • Legitimate hosting services abused for malware hosting/C2

    • An obfuscated cmd.exe command-line is typically used to evade detection.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks