Extracted

• • Target
    hacn.exe
  • Size 14.9MB
  • SHA256 26c5013c45b75f401bdf8c8389bb66b9f17bdc1cd0851a8b1803ec7a85dbd96a
  • MD5 2f20a53d05d89d72a94192a6b8098b77
  • SHA1 5558fea4d61191ae61f1996a2800b7a17a3f34e0
  • SHA512 147e0243ff304aa5316a0e1389f55c969193bf8513e893bf8fe7c1f3d9ff37afbb0cbbeeb966a98fc728e6b81b14bf4e440e5989e485fe461bb8bf7dc93b814e
  • SSDEEP 393216:HDfDoc6vWh2uCaoj0wAyvBF21TI6nx0I:Hb7uWhni0wx36
  • MD5 SHA1 SHA512 SSDEEP

  Score

  10^/10

  gurcumilleniumratcredential_accessdefense_evasiondiscoveryevasionexecutionpersistenceratspywarestealer

  • 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 NtCreateUserProcessOtherParentProcess

  • 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

  • Stops running service(s)

    evasionexecution

  • Checks BIOS information in registry

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

  • Checks computer location settings

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

  • 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

  • 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.

  • Drops file in System32 directory

  • Enumerates processes with tasklist

    discovery

  • Suspicious use of SetThreadContext

  behavioral1