General

  • Target

    https://waveexecutor.vercel.app/

  • Sample

    240915-a6w4xswhjq

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1284109352877428746/ynYxJ7LoUnQYDiMVawzxesm3MoVdr_2vbNfl-vna_xyFrDmgWu6L7UCN0tMvtbReFJJ8

Targets

    • Target

      https://waveexecutor.vercel.app/

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks