Extracted

• • Target

    C37boot/C37Bootstrapper.exe

  • Size

    405KB

  • MD5

    c8294556e29920bfcc619529da141096

  • SHA1

    7dad1b482c1d3baeade911400027e615e2ea52ff

  • SHA256

    26deb9a0264cccfdef387610235e9e9032144c8e73561c3d0007c248a6c84dc3

  • SHA512

    1ac29a6ecdf761d85d3b1b64910f7edd865238d1d6b159532efb8260fa9af35c7db06892359ba9efe7bd571ec2bd259a0621721666fd5b085e92f68848f63af6

  • SSDEEP

    6144:nloZM+rIkd8g+EtXHkv/iD4w85EFzQEb3CzFQMpFlb8e1mBiEqkRH:loZtL+EP8w85EFzQEb3CzFQMpfvEJ

  Score

  10^/10

  umbralexecutionspywarestealer

  • Detect Umbral payload

  • Umbral

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

    stealerumbral

  • 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

  • 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