Extracted

• • Target

    Bootstrapper.exe

  • Size

    231KB

  • MD5

    76da32bccf3ded8acf92d025e19324e0

  • SHA1

    3a9d9c6c68ec7ebfdc015b276bbc4d4e59f50a69

  • SHA256

    1974381d4a09db47060411d723079fffc960ab922b54b20323d80a1dfeefe60b

  • SHA512

    4f93c06348defd7f11c1db76ae0353ce73a0c743809f9efb675ca2caa0285ccbe21aedbe119f0f508ea8bcd8a62c5ad9f21536f6349c504f39d9648928c27bf9

  • SSDEEP

    6144:xloZM+rIkd8g+EtXHkv/iD4DakxPlO2Zsc1niinRVb8e1mhi:DoZtL+EP8DakxPlO2Zsc1niin7T

  Score

  10^/10

  umbralcredential_accessdiscoveryexecutionspywarestealer

  • Detect Umbral payload

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Drops file in Drivers directory

  • Deletes itself

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  behavioral1behavioral2