General

  • Target
    bv2gfmyhrrkhepg6.exe
  • Size 621KB
  • Sample260826-vdrc7asgka
  • SHA256 d2aee3875988075961f7bb5a759b58759d4e873e7257d5119d9178d5d19913d5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      bv2gfmyhrrkhepg6.exe
    • Size 621KB
    • SHA256 d2aee3875988075961f7bb5a759b58759d4e873e7257d5119d9178d5d19913d5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Dracula aka Samurai Stealer payload

    • Family: Dracula, Samurai

      Dracula aka Samurai is a stealer written in C#.

    • Modifies WinLogon for persistence

    • Adds policy Run key to start application

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

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

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v16

Tasks