General

  • Target

    yes.bat

  • Size

    81B

  • Sample

    241110-xebp8sshma

  • MD5

    3ea9c0b7bb65aa8001eaeb9db7dc4baa

  • SHA1

    66afd1dc643f1fd73f5d778c31eec1c2df87a188

  • SHA256

    ba6f2c164d4c3aa53ea0744873078d5d0cc504685211c72206d4630ee43c643c

  • SHA512

    ee5ae91c6246c595ceb395a4b80b580763aa884a1bdb8f2a3dc912e044bb2baecca294c36f771c791e1ebf8422b8436833dd34b94906992175545bfc609c14b3

Malware Config

Targets

    • Target

      yes.bat

    • Size

      81B

    • MD5

      3ea9c0b7bb65aa8001eaeb9db7dc4baa

    • SHA1

      66afd1dc643f1fd73f5d778c31eec1c2df87a188

    • SHA256

      ba6f2c164d4c3aa53ea0744873078d5d0cc504685211c72206d4630ee43c643c

    • SHA512

      ee5ae91c6246c595ceb395a4b80b580763aa884a1bdb8f2a3dc912e044bb2baecca294c36f771c791e1ebf8422b8436833dd34b94906992175545bfc609c14b3

    • Disables service(s)

    • Modifies security service

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Modifies boot configuration data using bcdedit

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Possible privilege escalation attempt

    • Stops running service(s)

    • 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

    • Modifies file permissions

    • Modifies system executable filetype association

    • 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

    • Enumerates connected drives

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

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks