Extracted

• • Target

    Exm Tweak Utility.exe

  • Size

    115.3MB

  • MD5

    28965ea63372067f577cce549e1f6e7d

  • SHA1

    bbfdc54c661d5887b6b59d197e0d05abc57bac40

  • SHA256

    59c298119f184b9885121db694169ce37693fdcf3e6b563bd9daeef730aaa35b

  • SHA512

    ef5b91a8030b05a285741e092494457eda4dbe099299e23a61d494e7494ff24553f87ca9b158a961e4b2e6cc3d430559fc663b13583764c280bc2ad58fe3ed90

  • SSDEEP

    3145728:7yMyjGDNIgg5o8RbhuDcUrasaEB7Q9ytw3:Yj0KhoibcDcUrlvpG

  Score

  10^/10

  gurcumilleniumratcollectioncredential_accessdefense_evasiondiscoveryevasionexecutionpersistenceprivilege_escalationpyinstallerratspywarestealerupx

  • Gurcu, WhiteSnake

    Gurcu is a malware stealer written in C#.

    stealergurcu

  • MilleniumRat

    MilleniumRat is a remote access trojan written in C#.

    ratstealermilleniumrat

  • Modifies WinLogon for persistence

    persistence

  • Process spawned unexpected child process

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

  • Suspicious use of NtCreateProcessExOtherParentProcess

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Contacts a large (2447) amount of remote hosts

    This may indicate a network scan to discover remotely running services.

    discovery

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • 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

  • Stops running service(s)

    evasionexecution

  • Checks BIOS information in registry

    BIOS information is often read in order to detect sandboxing environments.

  • Clipboard Data

    Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    collection

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Loads dropped DLL

  • Reads user/profile data of web browsers

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

    spywarestealer

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx

  • Unsecured Credentials: Credentials In Files

    Steal credentials from unsecured files.

    credential_accessstealer

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • Adds Run key to start application

    persistence

  • 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

  • Drops file in System32 directory

  • Enumerates processes with tasklist

    discovery

  • Hide Artifacts: Hidden Files and Directories

    defense_evasion

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  • Suspicious use of SetThreadContext

  behavioral1