Extracted

• • Target

    392fcfb7445ce64079d2de971877520e.exe

  • Size

    3.4MB

  • MD5

    392fcfb7445ce64079d2de971877520e

  • SHA1

    68b4ab6a88385348fb1808286ac3586c15ef73ef

  • SHA256

    294003b3626890da222c7aeb34f7ac71cec614026c686fd88df269cc175a0e8c

  • SHA512

    87ee7c6b2c6aa96779ab1c9c38e9ebb8f4c589681af31b164c261d84e86eac6e3e7b62beea1c37db912c2d49cbe28c28f1043f69d0b440328b52a482fc520f1c

  • SSDEEP

    98304:h/tCnHVGIBfSIJ7tCHkurtT2zFhuR83VYpBSUKn:JtCHVgG7EttEuR8WpBSUKn

  Score

  10^/10

  dcratumbralcredential_accessdiscoveryevasionexecutioninfostealerpersistenceratspywarestealertrojan

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    ratinfostealerdcrat

  • Detect Umbral payload

  • Process spawned unexpected child process

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass

    evasiontrojan

  • Umbral

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

    stealerumbral

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • DCRat payload

    Detects payload of DCRat, commonly dropped by NSIS installers.

    rat

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Sets file to hidden

    Modifies file attributes to stop it showing in Explorer etc.

    evasion

  • 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 whether UAC is enabled

    evasiontrojan

  • 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.

  behavioral1behavioral2