Analysis

  • max time kernel
    110s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    20/08/2020, 19:47

General

  • Target
    SecuriteInfo.com.Generic.mg.48599c28405b1527.17388.exe
  • Size 649KB
  • Sample200820-bb3acqa72s
  • SHA256 bdd5a26a1e63c3c60b9fa021dc6445a1a66d1680cfdf489c403645bb09b1e4af
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.tereza.sk

  • Port

    587

  • Password

    ##BICxUw

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.48599c28405b1527.17388.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.48599c28405b1527.17388.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.48599c28405b1527.17388.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.48599c28405b1527.17388.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1688

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1688-0-0x0000000000400000-0x0000000000466000-memory.dmp

        memory/1688-2-0x0000000000400000-0x0000000000466000-memory.dmp

        memory/1688-3-0x0000000000400000-0x0000000000466000-memory.dmp