General

  • Target
    Astri.exe
  • Size 6.9MB
  • Sample260626-3d17dsft3z
  • SHA256 bd030ea05b0e2a1709e7dba4dfb5aae1b38ed5d3096f4e82cc7b90d37c72f229
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Astri.exe
    • Size 6.9MB
    • SHA256 bd030ea05b0e2a1709e7dba4dfb5aae1b38ed5d3096f4e82cc7b90d37c72f229
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Detects BlankGrabber stealer in memory

    • Family: blankgrabber

      Blankgrabber is an infostealer written in Python and packaged with Pyinstaller.

    • Command and Scripting Interpreter: PowerShell

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

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Drops file in Drivers directory

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • UPX packed file

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

    • Target
      �����.pyc
    • Size 1KB
    • SHA256 84a7a7e821a164b1c4cea19e63e940e5c0529cf73474f1baa16113e60bce6ea9
    • MD5 SHA1 SHA512 TLSH
    Score
    1/10

MITRE ATT&CK Enterprise v16

Tasks