General

  • Target

    cheeto.exe

  • Size

    229KB

  • Sample

    240623-nafzqayfjh

  • MD5

    72614d4abc76ec3142bdc6d5bda7c38e

  • SHA1

    2b616f0b13d92557a7cd73935b3e7e301e294757

  • SHA256

    e82372deee967ba8a1a74e29a8887ac64e700554153267d09a184986a98efa29

  • SHA512

    56d7a569b012da9f9ab99044ac3ed489e1f11a233122b7271f2396e5a11d8e5ddf4f58b8bfa18ae96cbc55c57213d812622777b6fc8684ea96a4919ba202b7c4

  • SSDEEP

    6144:lloZM+rIkd8g+EtXHkv/iD4f6/Ff1DA0rVSjVg8Z+9vb8e1mZi:noZtL+EP8f6Nf1DA0rVSjVg8Z2f

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1254095742596026620/QBmTRb9H20UAgR-IUg-_rpwK5K7NM8whQATf2uiZg-j5JI4v1-NZx8QlzzIl8yg9sMnm

Targets

    • Target

      cheeto.exe

    • Size

      229KB

    • MD5

      72614d4abc76ec3142bdc6d5bda7c38e

    • SHA1

      2b616f0b13d92557a7cd73935b3e7e301e294757

    • SHA256

      e82372deee967ba8a1a74e29a8887ac64e700554153267d09a184986a98efa29

    • SHA512

      56d7a569b012da9f9ab99044ac3ed489e1f11a233122b7271f2396e5a11d8e5ddf4f58b8bfa18ae96cbc55c57213d812622777b6fc8684ea96a4919ba202b7c4

    • SSDEEP

      6144:lloZM+rIkd8g+EtXHkv/iD4f6/Ff1DA0rVSjVg8Z+9vb8e1mZi:noZtL+EP8f6Nf1DA0rVSjVg8Z2f

    • 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.

    • Drops file in Drivers directory

    • 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