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Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2022, 02:15

General

  • Target

    SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe

  • Size

    9KB

  • MD5

    76f7f07fceba81dd528ef9b10ecabfa0

  • SHA1

    6e5fea4625a773557cfc8cabd2df3bbeae41873b

  • SHA256

    61881ceb156b1061749e30c9e396bf12e94abedaebfe0acc723666c3f58e5ada

  • SHA512

    cec45f3293402615d22f7b0466783fd6ac99bfc55a9036439f225dc3450b943342c21e51dc6d91cb39fe076c4f0aeb9d48deebccfc0a0c566b65f7340ef23bd1

  • SSDEEP

    192:mMLh7fWeLMRXgwdMrIC8stYcFmVc03KY:ZLgeLMRXgwdMsCptYcFmVc03K

Malware Config

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
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4664
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQA2AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2848
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:2392
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3344

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2848-140-0x00000000072A0000-0x000000000791A000-memory.dmp

      Filesize

      6.5MB

    • memory/2848-135-0x00000000025B0000-0x00000000025E6000-memory.dmp

      Filesize

      216KB

    • memory/2848-136-0x0000000004C90000-0x00000000052B8000-memory.dmp

      Filesize

      6.2MB

    • memory/2848-137-0x0000000005470000-0x00000000054D6000-memory.dmp

      Filesize

      408KB

    • memory/2848-138-0x00000000054E0000-0x0000000005546000-memory.dmp

      Filesize

      408KB

    • memory/2848-139-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

      Filesize

      120KB

    • memory/2848-141-0x0000000006070000-0x000000000608A000-memory.dmp

      Filesize

      104KB

    • memory/3344-146-0x0000000005860000-0x00000000058FC000-memory.dmp

      Filesize

      624KB

    • memory/3344-144-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3344-145-0x0000000005D00000-0x00000000062A4000-memory.dmp

      Filesize

      5.6MB

    • memory/3344-147-0x0000000006D50000-0x0000000006DA0000-memory.dmp

      Filesize

      320KB

    • memory/3344-148-0x0000000006F10000-0x0000000006FA2000-memory.dmp

      Filesize

      584KB

    • memory/3344-149-0x00000000071F0000-0x00000000071FA000-memory.dmp

      Filesize

      40KB

    • memory/4664-133-0x0000000007160000-0x0000000007182000-memory.dmp

      Filesize

      136KB

    • memory/4664-132-0x0000000000A30000-0x0000000000A38000-memory.dmp

      Filesize

      32KB