Analysis

  • max time kernel
    94s
  • max time network
    79s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    12/08/2020, 13:13

General

  • Target
    invoice.exe
  • Size 717KB
  • Sample200812-ap8hpfs8vj
  • SHA256 e2cbded6f889f93a08c2889a5c93385b3b58a569169c17cf08fc667fa8869021
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.tiig-eg.com

  • Port

    587

  • Password

    servicelorch

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2344
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
        3⤵
        • Modifies registry key
        PID:3396

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2344-10-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2344-18-0x0000000006340000-0x0000000006341000-memory.dmp

        memory/2344-17-0x0000000005D70000-0x0000000005D71000-memory.dmp

        memory/2344-12-0x0000000073F90000-0x000000007467E000-memory.dmp

        memory/3608-4-0x0000000005330000-0x0000000005331000-memory.dmp

        memory/3608-8-0x000000000A260000-0x000000000A2B5000-memory.dmp

        memory/3608-9-0x000000000D660000-0x000000000D661000-memory.dmp

        memory/3608-7-0x0000000007BA0000-0x0000000007C05000-memory.dmp

        memory/3608-6-0x00000000054A0000-0x00000000054A8000-memory.dmp

        memory/3608-5-0x00000000053D0000-0x00000000053D1000-memory.dmp

        memory/3608-0-0x0000000073F90000-0x000000007467E000-memory.dmp

        memory/3608-3-0x0000000005930000-0x0000000005931000-memory.dmp

        memory/3608-1-0x0000000000910000-0x0000000000911000-memory.dmp