General

  • Target

    S500RAT.exe

  • Size

    12.4MB

  • Sample

    240704-j7mrbasbnq

  • MD5

    eca30bacd3085f447705c090cf780563

  • SHA1

    86d0d579742aeae2bea804b065abfa9ebf02b952

  • SHA256

    a5e929a6859512632ededb0d04f9b706fcc8568f828047fae99f2767f4f6c783

  • SHA512

    9c6ca62412486459c36818756aeb694caa9c6520e3178534ce1e0c2017df78e8fe359ef9f2ee8faaa8791ebd1fea99edcb4c15315b7294e0366ab4f00d3107b3

  • SSDEEP

    196608:PQb6doh5jCqj6dehxHTOf+Ce2XkuujHWRcQRO7F0p/GChj171pZqeYAtmk3BC:kionuqjtxVRA+BQQGprjbvqeYZwBC

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1241894578668306453/YE8mVIJLGG7vF4W-wKbO1sJc6Tx9XoUX9OTvB4fFiYWrALppn6EFkHHwMHAiSo-VJSAk

Targets

    • Target

      S500RAT.exe

    • Size

      12.4MB

    • MD5

      eca30bacd3085f447705c090cf780563

    • SHA1

      86d0d579742aeae2bea804b065abfa9ebf02b952

    • SHA256

      a5e929a6859512632ededb0d04f9b706fcc8568f828047fae99f2767f4f6c783

    • SHA512

      9c6ca62412486459c36818756aeb694caa9c6520e3178534ce1e0c2017df78e8fe359ef9f2ee8faaa8791ebd1fea99edcb4c15315b7294e0366ab4f00d3107b3

    • SSDEEP

      196608:PQb6doh5jCqj6dehxHTOf+Ce2XkuujHWRcQRO7F0p/GChj171pZqeYAtmk3BC:kionuqjtxVRA+BQQGprjbvqeYZwBC

    • Detect Umbral payload

    • Umbral

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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