Analysis

  • max time kernel
    74s
  • max time network
    23s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09/11/2020, 19:48

General

  • Target
    ORDER.exe
  • Size 372KB
  • Sample201109-cdcwg994sn
  • SHA256 00c63f44b1367e22d7d7887651bbee0ff02e40891480bb0b88d3ae636b912ece
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.sanfusin.com.tw

  • Port

    587

  • Password

    philomina1234567890

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lyFxuwhs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA2C5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2000
    • C:\Users\Admin\AppData\Local\Temp\ORDER.exe
      "C:\Users\Admin\AppData\Local\Temp\ORDER.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:684

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1764-0-0x0000000074DD0000-0x00000000754BE000-memory.dmp

          memory/1764-1-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

          memory/1764-3-0x00000000003D0000-0x00000000003D2000-memory.dmp

          memory/1764-4-0x0000000004750000-0x00000000047A4000-memory.dmp

          memory/2032-7-0x0000000000400000-0x0000000000452000-memory.dmp

          memory/2032-9-0x0000000000400000-0x0000000000452000-memory.dmp

          memory/2032-10-0x0000000000400000-0x0000000000452000-memory.dmp

          memory/2032-11-0x0000000074DD0000-0x00000000754BE000-memory.dmp