Analysis

  • max time kernel
    57s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09/11/2020, 19:58

General

  • Target
    GAC-PO of wire rope.xlsx.exe
  • Size 698KB
  • Sample201109-b6c4bm4hee
  • SHA256 3ce06fdf5477c3138f03977f72703a45d01d18764116f95fd41c8a8c9adfbad2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    secure197.inmotionhosting.com

  • Port

    587

  • Password

    GL@123456

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 WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GAC-PO of wire rope.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\GAC-PO of wire rope.xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Users\Admin\AppData\Local\Temp\GAC-PO of wire rope.xlsx.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1532

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1888-0-0x0000000000400000-0x0000000000452000-memory.dmp

          memory/1888-3-0x0000000000400000-0x0000000000452000-memory.dmp

          memory/1888-2-0x0000000000400000-0x0000000000452000-memory.dmp