General

  • Target

    clenor2.exe

  • Size

    251KB

  • Sample

    241117-sx6k4sskfz

  • MD5

    42c9654eb3298b8d5f4d16d1ed0d749e

  • SHA1

    4fc97a7b2620c1ce483b1cc0ec18ce72c95ad74f

  • SHA256

    f637e4110044a636ee310796ac7659d7b80a2e9ece59d47287cf6b4fe4bd35e1

  • SHA512

    2e2ea79df165f7431aea4663c7cee5e43df0510ac2a03e17ff9bed4c5ffe1b9174bdb9060e985c831abf36cbf0942b1fa76da2d30b277e26b2b83a632aaf0599

  • SSDEEP

    6144:TloZMsrIkd8g+EtXHkv/iD4xxfibhS6FHAxDeebc+Yb8e1m0yi40D:RoZTL+EP8xxfibhS6FHAxDeebcX7n40D

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1183496796442464288/d6E4LQG5nAtwk9UyXiD0x83Y9wC6BVc-vFDfW1T_z5Avbd1u9uH_gKWc0zEGS9E_Y_iC

Targets

    • Target

      clenor2.exe

    • Size

      251KB

    • MD5

      42c9654eb3298b8d5f4d16d1ed0d749e

    • SHA1

      4fc97a7b2620c1ce483b1cc0ec18ce72c95ad74f

    • SHA256

      f637e4110044a636ee310796ac7659d7b80a2e9ece59d47287cf6b4fe4bd35e1

    • SHA512

      2e2ea79df165f7431aea4663c7cee5e43df0510ac2a03e17ff9bed4c5ffe1b9174bdb9060e985c831abf36cbf0942b1fa76da2d30b277e26b2b83a632aaf0599

    • SSDEEP

      6144:TloZMsrIkd8g+EtXHkv/iD4xxfibhS6FHAxDeebc+Yb8e1m0yi40D:RoZTL+EP8xxfibhS6FHAxDeebcX7n40D

    • 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.

    • 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