Extracted

• • Target

    OblivionClient - Loader.exe

  • Size

    40.8MB

  • MD5

    2b44034e50129f5147fdf24ecff3c206

  • SHA1

    05ecb9594f74a0f567072fba224f07ebcfb524fa

  • SHA256

    be1584009cafff5d8f18674e6d2ea65085af54d372536c3dff3808c3bcdec576

  • SHA512

    212276778f9ad9f2ac08c5ff329880a068d1f0f1fc24474bab37e81e676fd4cf9bb0ae2ff68552997afb2e9ebd19c0e192526fa2c156ffb1e0d30dc168339cf5

  • SSDEEP

    786432:LyQZMFClCtlII/CnlxrH4T4Vu862kpkKOWck7UazNyF3S6ghQbhEhNLBsEzP:LyQZkVlII/CnlxrH4J862kpkq/pzoahj

  Score

  10^/10

  umbraldefense_evasiondiscoveryexecutionspywarestealerevasionpersistencetrojan

  • Detect Umbral payload

  • UAC bypass

    evasiontrojan

  • Umbral

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

    stealerumbral

  • Umbral family

    umbral

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Drops file in Drivers directory

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE

  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • 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.

  • Obfuscated Files or Information: Command Obfuscation

    Adversaries may obfuscate content during command execution to impede detection.

    defense_evasion

  • An obfuscated cmd.exe command-line is typically used to evade detection.

  • Drops file in System32 directory

  • Enumerates processes with tasklist

    discovery
  behavioral1behavioral2