Extracted

• • Target

    booststrapper.exe

  • Size

    231KB

  • MD5

    2bb0fafc29a110fc1b08a2999e29a7ae

  • SHA1

    10c76fd141b1a2c3a74a134cdf4166d44cf3507a

  • SHA256

    b467810a9eaab64b217e6a0cf61e2f13efe7e8e211b9d11a47c06218b48badce

  • SHA512

    d4006ab772424a4b5288fdfa368f47c35ddf3f5cefd741766ee19465fa4d29f99c044cbc8334f5f4df61ec17251b7ab377df8078e44ff725b6d86a0a4888ac62

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD445IbGELnsFd42X3Wjwb8e1mtPi:joZtL+EP845IbGELnsFd42X3Wkoa

  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