General

  • Target

    Patcher.bin

  • Size

    292KB

  • Sample

    240909-j3cesaydqn

  • MD5

    40e407453b653751e0f3b6237500c362

  • SHA1

    70c4819f3df236d816f01e884b88c683c87de8a7

  • SHA256

    42441a6e6eefa60a69c49cc280d1faafa48e0a3bc8e6787c3248a0c610c48c64

  • SHA512

    8298c7ef17583af41230b9a8a2d8cb69033f97a6a5ea19804f40e7d95c22af12feaef3b3a8f609320f72a85d323127aea6bdb8d493303ffd9c31bf14998737bb

  • SSDEEP

    6144:zloZMArIkd8g+EtXHkv/iD4Na1Q2AmB5K7/Cwhl0fjb8e1moirBcG95S:xoZHL+EP8Na1Q2AmB5K7/Cwhl0/arxK

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1281893760577568769/TeDYCewV4yykoreFUt-0f8MZ_-AtXL0RMIoTai6ZqBGOZso9yh5UUSvyS8y4M_zyk6aB

Targets

    • Target

      Patcher.bin

    • Size

      292KB

    • MD5

      40e407453b653751e0f3b6237500c362

    • SHA1

      70c4819f3df236d816f01e884b88c683c87de8a7

    • SHA256

      42441a6e6eefa60a69c49cc280d1faafa48e0a3bc8e6787c3248a0c610c48c64

    • SHA512

      8298c7ef17583af41230b9a8a2d8cb69033f97a6a5ea19804f40e7d95c22af12feaef3b3a8f609320f72a85d323127aea6bdb8d493303ffd9c31bf14998737bb

    • SSDEEP

      6144:zloZMArIkd8g+EtXHkv/iD4Na1Q2AmB5K7/Cwhl0fjb8e1moirBcG95S:xoZHL+EP8Na1Q2AmB5K7/Cwhl0/arxK

    • 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