Extracted

• • Target

    octosint.exe

  • Size

    628KB

  • MD5

    b4effaa19b06eb4a92b66b0ff2702c91

  • SHA1

    703aa3cec640517f6e51033c27bef4bbeb9afe9b

  • SHA256

    2464cc00fd3a0e7b5fd2e171e967b2ef65fde94bff68dda2dab12e2b9dce108d

  • SHA512

    d7e379b2148dc4697e7cd1529ef88bc5386f66df992afcb4423b4f24a7402b18531aee341c3dc22fe97d37583d7856a13cd1cdbeb341b042f0b547f485e09cd8

  • SSDEEP

    12288:2oZtL+EP8GwI8EKtFu9r20VJg2VFRiMdRC:qI8fI8EKtFu9r20VJg2hiMdA

  Score

  10^/10

  umbraldiscoveryexecutionspywarestealer

  • 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

  • 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.

  behavioral1