General

  • Target
    atb_certificate.zip
  • Size 331KB
  • Sample261111-dtmw9sdv8r
  • SHA256 6e09e64308d331f3da30c5f652b445cfb5e72c0f48f23049eb1d9ce7ecb0c24f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      atb_certificate.exe
    • Size 668KB
    • SHA256 0ab1cedab2185efefb9d52dbe1c84737d9bbd8878c003932fe8595bbeb30b688
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Stealc stealer Version 3

    • Family: Stealc

      Stealc is an infostealer written in C++.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

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

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

MITRE ATT&CK Enterprise v16

Tasks