Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2023, 13:11

General

  • Target

    a5102380ab2e18a46170b94277940e8568eaa2ab.exe

  • Size

    723KB

  • MD5

    d70b4cb4e031364f2feed4cd6a4832fd

  • SHA1

    a5102380ab2e18a46170b94277940e8568eaa2ab

  • SHA256

    e18b65850a6147b9ece9b7f2d8268303cdfa39c3c2ade801119f79191a6bc039

  • SHA512

    3f75b741f3ccac65be57524d3d65eada002d32ce0531f1d50bacc91a751a403de19c17402a0116bf058916eaa3b3c888c7fc980bd9d2a91a501d46e9fa02f9f0

  • SSDEEP

    12288:ERIOSw4qE4iVV/r7VWCWEErm+CAh7tT8WbFWFeUyZyZKd2fhc8gfzGY3c:iIOaqEZV/NWCWEE6ZS7tzvyZK0JFgfzC

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Da8@b!Gj!#zY4K

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5102380ab2e18a46170b94277940e8568eaa2ab.exe
    "C:\Users\Admin\AppData\Local\Temp\a5102380ab2e18a46170b94277940e8568eaa2ab.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CQUvzCBZioZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4344
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CQUvzCBZioZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF7C2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1916
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:3388
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3744

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmpF7C2.tmp

            Filesize

            1KB

            MD5

            8c3c4f06c32a5ad70d4068f8b4d571ee

            SHA1

            7893c2cabcdf256574df97243fbba339ed851349

            SHA256

            afed479205174f52c46d8d8cd754b25381be93ba573baf383b938d9db020afb3

            SHA512

            a72a3970b6efabc525121e471f390f49af4748296ca69f1d53e38bcd0abde4cb371c465a814d10bcfdc45fd56b441e497f69da0523b02a4d5840554882a8e98d

          • memory/3744-144-0x0000000000400000-0x000000000042E000-memory.dmp

            Filesize

            184KB

          • memory/3744-154-0x00000000067F0000-0x0000000006840000-memory.dmp

            Filesize

            320KB

          • memory/4160-133-0x0000000005BD0000-0x0000000006174000-memory.dmp

            Filesize

            5.6MB

          • memory/4160-134-0x00000000056C0000-0x0000000005752000-memory.dmp

            Filesize

            584KB

          • memory/4160-135-0x0000000005680000-0x000000000568A000-memory.dmp

            Filesize

            40KB

          • memory/4160-136-0x0000000007E40000-0x0000000007EDC000-memory.dmp

            Filesize

            624KB

          • memory/4160-132-0x0000000000C00000-0x0000000000CBA000-memory.dmp

            Filesize

            744KB

          • memory/4344-146-0x0000000005D70000-0x0000000005DD6000-memory.dmp

            Filesize

            408KB

          • memory/4344-152-0x0000000007E60000-0x00000000084DA000-memory.dmp

            Filesize

            6.5MB

          • memory/4344-141-0x0000000005640000-0x0000000005C68000-memory.dmp

            Filesize

            6.2MB

          • memory/4344-139-0x0000000004F50000-0x0000000004F86000-memory.dmp

            Filesize

            216KB

          • memory/4344-147-0x0000000005ED0000-0x0000000005F36000-memory.dmp

            Filesize

            408KB

          • memory/4344-148-0x0000000006510000-0x000000000652E000-memory.dmp

            Filesize

            120KB

          • memory/4344-149-0x0000000006AE0000-0x0000000006B12000-memory.dmp

            Filesize

            200KB

          • memory/4344-150-0x0000000070E60000-0x0000000070EAC000-memory.dmp

            Filesize

            304KB

          • memory/4344-151-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

            Filesize

            120KB

          • memory/4344-145-0x0000000005560000-0x0000000005582000-memory.dmp

            Filesize

            136KB

          • memory/4344-153-0x0000000007820000-0x000000000783A000-memory.dmp

            Filesize

            104KB

          • memory/4344-155-0x0000000007890000-0x000000000789A000-memory.dmp

            Filesize

            40KB

          • memory/4344-156-0x0000000007AA0000-0x0000000007B36000-memory.dmp

            Filesize

            600KB

          • memory/4344-157-0x0000000007A50000-0x0000000007A5E000-memory.dmp

            Filesize

            56KB

          • memory/4344-158-0x0000000007B60000-0x0000000007B7A000-memory.dmp

            Filesize

            104KB

          • memory/4344-159-0x0000000007B40000-0x0000000007B48000-memory.dmp

            Filesize

            32KB