General

  • Target

    Xeno Download.exe

  • Size

    231KB

  • Sample

    250125-ee82mavjez

  • MD5

    172d2aa12988e776eaf589bb2a512827

  • SHA1

    f30c2d9a29a2e853ffa77205b4a2548cc0cef8af

  • SHA256

    790373ad099621fefbbe0df00c3c9c1bc671d5f5aacca55f37e844e3d8b517ce

  • SHA512

    b417e81f10b9c24bf3e6cb4852a8455d26ecc4462604a709ea9a11c1a25f674f1e890818f196111f44e2c2956117cd5726119c01b20c1286a92a4485c631f4f2

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD4kFu9IuphCln6opNswlb8e1mXlExi:joZtL+EP8kFu9IuphCln6opNsw2p

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1332520219452768297/tCosfoZIbGVyGJrBCbcoypdjWsz1tc2GtbBXf7i8mWs2kn2NMmPVxus4qdn8X4Ou9SMV

Targets

    • Target

      Xeno Download.exe

    • Size

      231KB

    • MD5

      172d2aa12988e776eaf589bb2a512827

    • SHA1

      f30c2d9a29a2e853ffa77205b4a2548cc0cef8af

    • SHA256

      790373ad099621fefbbe0df00c3c9c1bc671d5f5aacca55f37e844e3d8b517ce

    • SHA512

      b417e81f10b9c24bf3e6cb4852a8455d26ecc4462604a709ea9a11c1a25f674f1e890818f196111f44e2c2956117cd5726119c01b20c1286a92a4485c631f4f2

    • SSDEEP

      6144:RloZM+rIkd8g+EtXHkv/iD4kFu9IuphCln6opNswlb8e1mXlExi:joZtL+EP8kFu9IuphCln6opNsw2p

    • 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

    • 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