Extracted

• • Target

    nurik.exe

  • Size

    333KB

  • MD5

    f6e15a4eba5f1bcfd4c60ad8c4b2f9b7

  • SHA1

    e929b611283987c4dc213b7ce786bb5762fbcaaf

  • SHA256

    bcd7b068992fb848fc3ba76021b3e095d0a0682c17146b4d836fa2a7846a2e0f

  • SHA512

    474c63a3dc03ddc3baf0463723ac991bd0cec08ebeaa64b867c91ae8624bbe37e1b1011e05f55ed7f1135f96931d654b243e8634d6dc367bd5ced05a6c1d7070

  • SSDEEP

    6144:ChCaXLv7nv96n5wmrHtU0wd9vKPoYYqUOiD:gbnFLUNeYYq7

  Score

  10^/10

  44caliberdiscoveryevasionexecutionpersistencespywarestealertrojanbootkit

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber

  • 44Caliber family

    44caliber

  • UAC bypass

    evasiontrojan

  • Windows security bypass

    evasiontrojan

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Event Triggered Execution: Image File Execution Options Injection

    persistence

  • Checks computer location settings

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

  • Executes dropped EXE

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Windows security modification

    evasiontrojan

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • 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.

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  behavioral1behavioral2