Extracted

• • Target

    BootstrapperNew.exe

  • Size

    2.5MB

  • MD5

    34d432e798ab3b52bc4af41be6f1d014

  • SHA1

    2bb6fbd86e63c40f088ed77a27be6402be96d7ce

  • SHA256

    dc5abd691589fe6086d88e1a673c0194315d9862e23d04c33b53c98f16f5940c

  • SHA512

    66073c887bcec7fcfd73a12b8ea1a4bda88672f40fa47f41beac0ecb7724940a5c72fcff64ab4dd56788d38b2b16f2923468e4bd9c01b4e72757fffa0ca74bce

  • SSDEEP

    49152:txkczo+Et3EczvDrtkm3wmTwGyNqXhp3z182x0r8HQ4PhrYLg8hVYMz+Pt7Ld:tE+YplNwGyNm3Z/x0wCXq

  Score

  10^/10

  umbralexecutionpersistencespywarestealer

  • Detect Umbral payload

  • Umbral

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

    stealerumbral

  • Umbral family

    umbral

  • 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

  • Executes dropped EXE

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Adds Run key to start application

    persistence

  • 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.

  behavioral1