General

  • Target

    Nexus.exe

  • Size

    1.4MB

  • Sample

    240920-dnb8ksvhjd

  • MD5

    8b494166a252d874c81e5be1e070fb58

  • SHA1

    ebf82b136e93b2146d5e0fa4e71e738718988fa0

  • SHA256

    8a2ad73f7145775cd6031e3a0ead788a50dab29e30c1396296e8813e57e5cfa4

  • SHA512

    6300e5207d0858a51618e5e47be129739711da5916a85cc7b680cc519987f2f6c6f30bbab1016319368ab917846a47848068dea2eb8d7b897e62b7778da0ac6c

  • SSDEEP

    24576:f4R3sAPRcCnCgYpNX/scAsrNYYSl4WNoDD3y7qYj58MGAEkZd5703vN1lnLp3GXa:ApsAPRcYrYptPiYS/oDD3MN8HGq3XlnN

Malware Config

Targets

    • Target

      Nexus.exe

    • Size

      1.4MB

    • MD5

      8b494166a252d874c81e5be1e070fb58

    • SHA1

      ebf82b136e93b2146d5e0fa4e71e738718988fa0

    • SHA256

      8a2ad73f7145775cd6031e3a0ead788a50dab29e30c1396296e8813e57e5cfa4

    • SHA512

      6300e5207d0858a51618e5e47be129739711da5916a85cc7b680cc519987f2f6c6f30bbab1016319368ab917846a47848068dea2eb8d7b897e62b7778da0ac6c

    • SSDEEP

      24576:f4R3sAPRcCnCgYpNX/scAsrNYYSl4WNoDD3y7qYj58MGAEkZd5703vN1lnLp3GXa:ApsAPRcYrYptPiYS/oDD3MN8HGq3XlnN

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender notification settings

    • Modifies security service

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks computer location settings

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

    • Clipboard Data

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

    • 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.

    • UPX packed file

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Modifies Security services

      Modifies the startup behavior of a security service.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks