Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/11/2022, 03:18

General

  • Target
    RFQ11132022-SOEC.exe
  • Size 509KB
  • Sample221115-dtln7sbb2v
  • SHA256 fcaf490e6ee9254f89eecbce2dd1dfa355e450c30a8648e7db43db4c5e9e434d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.electrobist.com

  • Port

    21

  • Password

    w&oNc9e]pf~4

Signatures

  • AgentTesla

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ11132022-SOEC.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ11132022-SOEC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3060
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
        PID:2640
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
        2⤵
          PID:3760
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.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:4856

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/3060-132-0x000001FEE2EC0000-0x000001FEE2F44000-memory.dmp

            memory/3060-133-0x00007FFFDEF20000-0x00007FFFDF9E1000-memory.dmp

            memory/3060-136-0x00007FFFDEF20000-0x00007FFFDF9E1000-memory.dmp

            memory/4856-134-0x0000000000400000-0x0000000000440000-memory.dmp

            memory/4856-137-0x0000000005AA0000-0x0000000006044000-memory.dmp

            memory/4856-138-0x00000000055E0000-0x000000000567C000-memory.dmp

            memory/4856-139-0x0000000006390000-0x00000000063F6000-memory.dmp

            memory/4856-140-0x0000000006DA0000-0x0000000006DF0000-memory.dmp

            memory/4856-141-0x0000000006F20000-0x0000000006FB2000-memory.dmp

            memory/4856-142-0x0000000007230000-0x000000000723A000-memory.dmp