Overview

overview

10

Static

static

zeco.exe

windows7_x64

10

zeco.exe

windows10_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 19:39

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General

  • Target
    zeco.exe
  • Size 1.8MB
  • Sample201109-4mcpdeaffs
  • SHA256 2e7f95b47bc6f8c733ecdb9895e810a8378d9a908bde0f990f1631aa86e68cc3
  • MD5 SHA1 SHA512
Score
10/10
agentteslakeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Credentials
  • Protocol

    smtp
  • Host

    smtp.yandex.com
  • Port

    587
  • Username

    [email protected]
  • Password

    07030452451

Extracted

Family

  • agenttesla

Credentials
  • Protocol

    smtp
  • Host

    smtp.yandex.com
  • Port

    587
  • Username

    [email protected]
  • Password

    07030452451

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zeco.exe
    "C:\Users\Admin\AppData\Local\Temp\zeco.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4048
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c TimeOut 1 & Del /F "C:\Users\Admin\AppData\Local\Temp\zeco.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\SysWOW64\timeout.exe
          TimeOut 1
          3⤵
          • Delays execution with timeout.exe
          PID:3628

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2236-0-0x0000000000400000-0x0000000000450000-memory.dmp
          Download