Analysis

  • max time kernel
    141s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    21/03/2022, 08:57

General

  • Target
    (引用).exe
  • Size 10KB
  • Sample220321-kwlkjsahgr
  • SHA256 5de3a725e202d9b3135102036a2d460cf6a00eed4e4839af7577cd6e00743752
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.kosmen.vn

  • Port

    587

  • Password

    Kosmen.2021

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • suricata: ET MALWARE AgentTesla Exfil Via SMTP

    suricata: ET MALWARE AgentTesla Exfil Via SMTP

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\(引用).exe
    "C:\Users\Admin\AppData\Local\Temp\(引用).exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:4972
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1308

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1308-137-0x0000000004D20000-0x0000000004D21000-memory.dmp

          memory/1308-133-0x0000000000400000-0x000000000043A000-memory.dmp

          memory/1308-134-0x0000000005400000-0x00000000059A4000-memory.dmp

          memory/1308-135-0x0000000004E50000-0x0000000004EEC000-memory.dmp

          memory/1308-136-0x0000000074B70000-0x0000000075320000-memory.dmp

          memory/1308-138-0x0000000005A50000-0x0000000005AB6000-memory.dmp

          memory/1308-139-0x0000000006170000-0x00000000061C0000-memory.dmp

          memory/1308-140-0x00000000064A0000-0x0000000006532000-memory.dmp

          memory/1308-141-0x0000000006450000-0x000000000645A000-memory.dmp

          memory/1308-142-0x0000000004D21000-0x0000000004D22000-memory.dmp

          memory/2492-132-0x0000000005220000-0x0000000005221000-memory.dmp

          memory/2492-131-0x0000000074B70000-0x0000000075320000-memory.dmp

          memory/2492-130-0x00000000007B0000-0x00000000007B8000-memory.dmp