General

  • Target

    Cheats(1).exe

  • Size

    230KB

  • Sample

    250120-2qwxrstkam

  • MD5

    fcbbca974eb528d44000b43149488cad

  • SHA1

    9077fab0405cef6eb018253fb46e93f40140a515

  • SHA256

    a973305d9717c1295238c76cede131090482fdcb9364598874cf9395024c6f1f

  • SHA512

    75346282592aee44d589ef4b14e5581e011c77748d414431daf004a2bb3af4ed9fc095df6a8280e7caedaa2fdc4520ae856063ff00bf17d1f7454e4120a1f09f

  • SSDEEP

    6144:1loZM+rIkd8g+EtXHkv/iD4AHQNp3cw/ZeHp0AViab8e1mdi:XoZtL+EP8AHQNp3cw/ZeHp0AVxT

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1330791608047767657/vmylSlA9KGW2cmF6eg1gyULT0gyYMzMQLCmIWevC2f30xHNmPRfEWuLYQ0uHU1h3DRwb

Targets

    • Target

      Cheats(1).exe

    • Size

      230KB

    • MD5

      fcbbca974eb528d44000b43149488cad

    • SHA1

      9077fab0405cef6eb018253fb46e93f40140a515

    • SHA256

      a973305d9717c1295238c76cede131090482fdcb9364598874cf9395024c6f1f

    • SHA512

      75346282592aee44d589ef4b14e5581e011c77748d414431daf004a2bb3af4ed9fc095df6a8280e7caedaa2fdc4520ae856063ff00bf17d1f7454e4120a1f09f

    • SSDEEP

      6144:1loZM+rIkd8g+EtXHkv/iD4AHQNp3cw/ZeHp0AViab8e1mdi:XoZtL+EP8AHQNp3cw/ZeHp0AVxT

    • Detect Umbral payload

    • Umbral

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

    • Umbral family

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

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

    • 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.

    • 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