Extracted

• • Target

    b2f98951d0741d0426517fabaaa6e215ec4aa4622a0badb8c8df34e414983e57N

  • Size

    5.5MB

  • MD5

    bb03e8f97d4a17dedc001090c096ff60

  • SHA1

    dfe5de118a5f8ef8fd38d8748b1f28a5c14f04df

  • SHA256

    b2f98951d0741d0426517fabaaa6e215ec4aa4622a0badb8c8df34e414983e57

  • SHA512

    d8fa1be73c86e03530a6b0bde7b95f0f4d62891af96d4fe905856ad6997121574ce5d9ab9c7bbc07b8245899667888028d45576f862e5593b61ac9e4dab37b9b

  • SSDEEP

    98304:VTcW6I+2hiVK/Frlc328jTU5F4sb7nZ/BsfBi0XsPmVMqyPcWeY5X8:lcRI+2hGKBY2dF4sb7nRefB/8+mkfY5s

  Score

  10^/10

  44caliberdefense_evasiondiscoveryevasionexecutionpersistencespywarestealer

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Creates new service(s)

    persistenceexecution

  • Sets service image path in registry

    persistence

  • 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

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • 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.

  • Power Settings

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    persistence

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2