General

  • Target

    ArdourLoader2.0.exe

  • Size

    227KB

  • Sample

    250125-wan94avqbp

  • MD5

    6bd0ba296a6ae59391e85a77615df0bf

  • SHA1

    17d4a89b75d2851783bd12bbfa4ac14d37d62d4e

  • SHA256

    80956000711342bc2f819b573fd213112a43ea9e7b9102fadd3cbae4873cea65

  • SHA512

    ce974bba87089fffdf266f94cbc48c5a3bc2e80b70b595be026ebccc62af7302fddd518687fe4883706caae9412c0d8c2faa2e3348f75f30ec38a38254868930

  • SSDEEP

    6144:+loZM3fsXtioRkts/cnnK6cMlD/WQCg/7ImR0STTKejb8e1mJi:ooZ1tlRk83MlD/WQCg/7ImR0STTKw/

Malware Config

Extracted

Family

umbral

C2

https://discordapp.com/api/webhooks/1332232783245869076/8iqWQipfvfZ2sQCMUK9aNG_XumnepCI6dg5TTLQmL79M3EIKrDM4WWeE4ArliyfZo1d0

Targets

    • Target

      ArdourLoader2.0.exe

    • Size

      227KB

    • MD5

      6bd0ba296a6ae59391e85a77615df0bf

    • SHA1

      17d4a89b75d2851783bd12bbfa4ac14d37d62d4e

    • SHA256

      80956000711342bc2f819b573fd213112a43ea9e7b9102fadd3cbae4873cea65

    • SHA512

      ce974bba87089fffdf266f94cbc48c5a3bc2e80b70b595be026ebccc62af7302fddd518687fe4883706caae9412c0d8c2faa2e3348f75f30ec38a38254868930

    • SSDEEP

      6144:+loZM3fsXtioRkts/cnnK6cMlD/WQCg/7ImR0STTKejb8e1mJi:ooZ1tlRk83MlD/WQCg/7ImR0STTKw/

    • Detect Umbral payload

    • Umbral

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

    • Umbral family

    • 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.

    • 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