Analysis

  • max time kernel
    137s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2024, 14:37

General

  • Target
    dd.exe
  • Size 742KB
  • Sample240123-ry5jrsbbhq
  • SHA256 d5b58663ecebfcc7b6093c8d0fbea2539cbcaeaa00d3f46f38b60353223ace6f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.showpiece.trillennium.biz

  • Port

    587

  • Password

    L+D+{64UN$~{

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd.exe
    "C:\Users\Admin\AppData\Local\Temp\dd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VUdwjF.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4796
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VUdwjF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp831A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1832
    • C:\Users\Admin\AppData\Local\Temp\dd.exe
      "C:\Users\Admin\AppData\Local\Temp\dd.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_32ewzk1a.30n.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_32ewzk1a.30n.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp831A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp831A.tmp
        • Size 1KB
        • SHA256 d23ee8cc4cb4300a20e37a4ffc694d51c80b9a987ab31d7d4ae6b35d6ab30241
        • MD5 SHA1 SHA512

        memory/3488-71-0x0000000005350000-0x0000000005360000-memory.dmp

        memory/3488-23-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/3488-35-0x0000000005350000-0x0000000005360000-memory.dmp

        memory/3488-69-0x00000000068A0000-0x00000000068F0000-memory.dmp

        memory/3488-25-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/3488-70-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/3704-5-0x0000000005A40000-0x0000000005A4A000-memory.dmp

        memory/3704-9-0x0000000006FD0000-0x000000000704A000-memory.dmp

        memory/3704-10-0x0000000009760000-0x00000000097FC000-memory.dmp

        memory/3704-8-0x0000000005C80000-0x0000000005C8C000-memory.dmp

        memory/3704-1-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/3704-7-0x0000000005C50000-0x0000000005C58000-memory.dmp

        memory/3704-6-0x0000000005B90000-0x0000000005BA8000-memory.dmp

        memory/3704-4-0x0000000005C90000-0x0000000005CA0000-memory.dmp

        memory/3704-21-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/3704-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

        memory/3704-2-0x0000000006190000-0x0000000006734000-memory.dmp

        memory/3704-0-0x0000000000F90000-0x0000000001050000-memory.dmp

        memory/3704-28-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/4796-16-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/4796-58-0x0000000006D40000-0x0000000006D5A000-memory.dmp

        memory/4796-24-0x0000000004B60000-0x0000000004BC6000-memory.dmp

        memory/4796-22-0x0000000004980000-0x00000000049A2000-memory.dmp

        memory/4796-20-0x0000000004C60000-0x0000000005288000-memory.dmp

        memory/4796-29-0x0000000005470000-0x00000000057C4000-memory.dmp

        memory/4796-40-0x0000000005A20000-0x0000000005A3E000-memory.dmp

        memory/4796-41-0x0000000005A40000-0x0000000005A8C000-memory.dmp

        memory/4796-44-0x0000000070DB0000-0x0000000070DFC000-memory.dmp

        memory/4796-56-0x0000000006A40000-0x0000000006AE3000-memory.dmp

        memory/4796-55-0x0000000002180000-0x0000000002190000-memory.dmp

        memory/4796-54-0x0000000005FD0000-0x0000000005FEE000-memory.dmp

        memory/4796-43-0x0000000006A00000-0x0000000006A32000-memory.dmp

        memory/4796-27-0x0000000005400000-0x0000000005466000-memory.dmp

        memory/4796-57-0x0000000007390000-0x0000000007A0A000-memory.dmp

        memory/4796-42-0x000000007F0C0000-0x000000007F0D0000-memory.dmp

        memory/4796-59-0x0000000006DB0000-0x0000000006DBA000-memory.dmp

        memory/4796-60-0x0000000006FC0000-0x0000000007056000-memory.dmp

        memory/4796-61-0x0000000006F40000-0x0000000006F51000-memory.dmp

        memory/4796-62-0x0000000006F70000-0x0000000006F7E000-memory.dmp

        memory/4796-63-0x0000000006F80000-0x0000000006F94000-memory.dmp

        memory/4796-64-0x0000000007080000-0x000000000709A000-memory.dmp

        memory/4796-65-0x0000000007060000-0x0000000007068000-memory.dmp

        memory/4796-68-0x0000000074710000-0x0000000074EC0000-memory.dmp

        memory/4796-18-0x0000000002180000-0x0000000002190000-memory.dmp

        memory/4796-17-0x0000000002180000-0x0000000002190000-memory.dmp

        memory/4796-15-0x0000000002120000-0x0000000002156000-memory.dmp