Analysis

  • max time kernel
    54s
  • max time network
    62s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2023, 15:03

General

  • Target
    Echelon.exe
  • Size 581KB
  • Sample230330-sfe2tsdb58
  • SHA256 3dfee3703ea081d2abc9a6b23c5be666a11134086326869ff6a4acb53b9c5be9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 IoCs
  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 3 IoCs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Echelon.exe
    "C:\Users\Admin\AppData\Local\Temp\Echelon.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:1816
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1816 -s 2732
      2⤵
      • Program crash
      PID:4540
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 408 -p 1816 -ip 1816
    1⤵
      PID:4020

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1816-133-0x00000248C4FC0000-0x00000248C5058000-memory.dmp

          memory/1816-134-0x00000248DF6A0000-0x00000248DF6B0000-memory.dmp

          memory/1816-135-0x00000248DF6A0000-0x00000248DF6B0000-memory.dmp