General

  • Target

    https://mega.nz/file/ME5DXRAD#7_smvBO_pP9qEHRNhLeZ1rCo9ChMxpj_4H0V_OuM_Ow

  • Sample

    240915-tayses1dnf

Malware Config

Targets

    • Target

      https://mega.nz/file/ME5DXRAD#7_smvBO_pP9qEHRNhLeZ1rCo9ChMxpj_4H0V_OuM_Ow

    • Detect Umbral payload

    • Umbral

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks