General

  • Target

    xanyx-loader.exe

  • Size

    349KB

  • Sample

    240827-wlfgbstbrf

  • MD5

    ed847ded3be4f10c7ac9e83d9d1d2e83

  • SHA1

    e871c6bfb85998c26b1dac25f477c401af71b6da

  • SHA256

    be714037f784e78ea5e6698029d60d692be324de6530a02a8efd65c1a8a5fccc

  • SHA512

    a6a3640fed6a3f4241ab2d365ef8fa08af9a5c40f95031cc350a21fbcf1385354c3b8d128e91d0c5cc349856ea7b7ff17a01615da218de9f4b836bccd48fbbf6

  • SSDEEP

    6144:BloZMrlaVXiOBt/dKh98QtB5bxM8KDXqBVa07nIrvTuuuhJ8eFJLVp6kpKte/aVK:zoZzyOB5QB5VM8KDXqBVa07nIrwJ76kb

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1277968811785457707/QMEDo085SOqrKDO33OA_H6n9bDNLlzAEH4AxLM7VchZIKI1isnDJLGpfI126Kl0lK_ic

Targets

    • Target

      xanyx-loader.exe

    • Size

      349KB

    • MD5

      ed847ded3be4f10c7ac9e83d9d1d2e83

    • SHA1

      e871c6bfb85998c26b1dac25f477c401af71b6da

    • SHA256

      be714037f784e78ea5e6698029d60d692be324de6530a02a8efd65c1a8a5fccc

    • SHA512

      a6a3640fed6a3f4241ab2d365ef8fa08af9a5c40f95031cc350a21fbcf1385354c3b8d128e91d0c5cc349856ea7b7ff17a01615da218de9f4b836bccd48fbbf6

    • SSDEEP

      6144:BloZMrlaVXiOBt/dKh98QtB5bxM8KDXqBVa07nIrvTuuuhJ8eFJLVp6kpKte/aVK:zoZzyOB5QB5VM8KDXqBVa07nIrwJ76kb

    • 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

      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