Analysis

  • max time kernel
    92s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-02-2023 15:21

General

  • Target

    Echelon.exe

  • Size

    582KB

  • MD5

    be7fb27a2d8fe2dcb1573590373ccab7

  • SHA1

    1f97541db03a96f28c786e99ee40d8da1a2035fd

  • SHA256

    37b659aa22473d3c2c8d94a2f83735a3e849fa148955401751e9a28963171320

  • SHA512

    209d24bb976d671755bf3cdfffdc9d28d2f7c2fd372d3dd6e1a2fdcb537a50ddfd296a661b3627652d945317b0c211d46b569235897a010bac77aea97de28605

  • SSDEEP

    12288:Ha4ne0dXFMetm3aC33ZLJLUf9snBS4csPYae6qfzFAA:T5I33hhUF54clNf7FB

Malware Config

Signatures

  • 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:2244
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2244 -s 2784
      2⤵
      • Program crash
      PID:1464
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 456 -p 2244 -ip 2244
    1⤵
      PID:4204

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    Collection

    Data from Local System

    2
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2244-133-0x0000019E6F4E0000-0x0000019E6F578000-memory.dmp
      Filesize

      608KB

    • memory/2244-134-0x0000019E73040000-0x0000019E73050000-memory.dmp
      Filesize

      64KB

    • memory/2244-135-0x0000019E73040000-0x0000019E73050000-memory.dmp
      Filesize

      64KB