General

  • Target

    Rename_OiuBwlLYcB.exe

  • Size

    37.3MB

  • Sample

    240925-zq4aqsxdml

  • MD5

    f18460123fb637d5d996115810de9e56

  • SHA1

    8c43bb5c15012dbb2d403ed26e95b554353599f6

  • SHA256

    90a74dc8ee865ca73c560ac0dbc4bf8ac7ba0bcedd303062422e4cafb8475c81

  • SHA512

    e8b839c0d1277441b6792f07e0c724a45bd97c1cf93322e5ab4d4cdf1a8cfea13692997b1cfaf9969be4c2a68ac5bdc93d4e001de80aed8d59f09cc4a85bf64c

  • SSDEEP

    393216:RQgHDlanaGBXvDKtz+bhPWES4tiNQPNrIKc4gaPbUAgrO4mgl96l+ZArYsFRlr67:R3on1HvSzxAMNlFZArYsOnPvG7OZl46

Malware Config

Targets

    • Target

      Rename_OiuBwlLYcB.exe

    • Size

      37.3MB

    • MD5

      f18460123fb637d5d996115810de9e56

    • SHA1

      8c43bb5c15012dbb2d403ed26e95b554353599f6

    • SHA256

      90a74dc8ee865ca73c560ac0dbc4bf8ac7ba0bcedd303062422e4cafb8475c81

    • SHA512

      e8b839c0d1277441b6792f07e0c724a45bd97c1cf93322e5ab4d4cdf1a8cfea13692997b1cfaf9969be4c2a68ac5bdc93d4e001de80aed8d59f09cc4a85bf64c

    • SSDEEP

      393216:RQgHDlanaGBXvDKtz+bhPWES4tiNQPNrIKc4gaPbUAgrO4mgl96l+ZArYsFRlr67:R3on1HvSzxAMNlFZArYsOnPvG7OZl46

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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.

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • An obfuscated cmd.exe command-line is typically used to evade detection.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks